2019
- K. Wagatsuma, S. Nakahata, S. Kashiwakura: Two-dimensional Observation of Surface Layer Formed on Chemically-treated Aluminum Alloy Using Laser-induced Plasma Optical Emission Spectrometry (invited), Analytix2019, Singapore, 4/11-13, 2019.
- K. Wagatsuma, T. Matsuda, S. Kashiwakura: Lateral resolution in beam-scanning laser-induced breakdown spectrometry by using 1-kHz-class Nd:YAG laser, CETAS2019, Dusseldorf, Germany, 5/21-23, 2019.
- K. Wagatsuma, K. Furukawa: Surface treatment of biomaterial Co-Cr-Mo alloy by using a hollow-cathode glow discharge plasma with oxygen mixed gas¡¡(Invited), ABB2019, Macau, China, 7/22-24, 2019.
- Y. Arai, K. Wagatsuma: Optimization of the operating conditions of a nitrogen microwave-induced plasma for surface treatment of steel substrate(invited), The 8th Global Conference on Materials Science and Engineering (CMSE2019), Sanya, China, 11/12-15 (2019).
- S. Imashuku, K. Wagatsuma: Analysis of oxide scales on heat-resistant metals using cathodoluminescence, 12th International Symposium on Atomic Level Characterizations for New Materials ¡Ç19 (ALC'19), Kyoto, Japan, October, 2019.
- Y. Fugane, S. Kashiwakura, K. Wagatsuma: Application of LIBS to sorting of aluminum materials and detection of the inclusion particles, 3rd Asian Symposium on Laser Induced Breakdown Spectroscopy ¡Ç19 (ASLIBS2019), Jeju, Korea, August 27-30, 2019.
2018
- O. Miura, K. Wagatsuma: Application of Dual-step Pulse Voltage to a Grimm-Style Radiation Source to Improve the depth Profiling in Glow Discharge Optical Emission Spectrometry, 4th International Glow Dicharge Spectroscopy Symposium, BAM, Berlin, Germany, 4/16 - 18, 2018.
- X. Zhang, K. Wagatsuma: Emission Characteristics of 6.78-MHz Radio-Frequency Glow Discharge in a Pulsed Mode, 4th International Glow Dicharge Spectroscopy Symposium, BAM, Berlin, Germany, 4/16 - 18, 2018.
- Y. Nunome, K. Kodama, K. Wagatsuma: Self-Bias Current Introduction Method to Improve Transient Respose of the Emission Signal in Pulsed Radio-Frequency Glow Discharge Optical Emission Spectrometry, 4th International Glow Dicharge Spectroscopy Symposium, BAM, Berlin, Germany, 4/16 - 18, 2018.
- O. Miura, K. Sasaki, K. Wagatsuma: Data treatment of the emission signal from square-wave-pulsed glow discharge plasma based on an algorism of fast Fourier transform (Invited), ICASI2018 & CCATM2018, Beijing, China, 10/15-18, 2018.
- X. Zhang, K. Wagatsuma: Development of glow discharge optical emission spectrometer with two-dimensional spatial resolution - Setting of controlling parameters for ICCD detector (invited), ICASI2018 & CCATM2018, Beijing, China, 10/15-18, 2018.
- H. Tsuneda, S. Imashuku, K. Wagatsuma: Mapping of free-lime particles in steelmaking slag utilizing cathodeluminescence method, ICASI2018 & CCATM2018, Beijing, China, 10/15-18, 2018
- S.Imashuku, H. Taguchi, T. Kawamata, S. Kashiwakura, S. Fujieda, S. Suzuki, K. Wagatsuma: Lithium distribution measurement in electrodes of lithium-ion battery by laser-induced breakdown spectroscopy (poster), SUMIT of MATERIALS SCIENCE (SMS2018), Sendai, Japan, 10/9, 2018.
- S. Imashuku, K. Wagatsuma: X-ray excited optical luminescence analyzer for on-line analysis of nonmetallic inclusions in steel (poster), European Conference on X-Ray Spectrometry (EXRS2018), Ljubljana, Slovenia, 6/25-28, 2018.
- S.Imashuku, .H Tsuneda, K. Wagatsuma: Identification of free lime in slag using scanning electron microscope-cathodoluminescence analysis (poster), European Conference on X-Ray Spectrometry (EXRS2018), Ljubljana, Slovenia, 6/25-28, 2018.
- K. Nakayama, K. Wagatsuma: An improved method for glass bead preparation of high-speed steel for traceable X-ray fluorescence analysis, 3rd International Caparica Christmas Conference on Sample Treatment, Caparica, Portugal, 12/3-6, 2018.
2017
- K. Wagatsuma, Y. Toya, T. Itagaki: Correlation between gas temperature and atomization behavior of analyte elements in flame atomic absorption spectrometry estimated with a multi-wavelength high-resoltion spectrometer, Colloquium Spectroscopicum Internationale XL, Pisa, Italy, 6/11-16, 2017.
- Y. Nunome, K. Kodama, R. Yoshiie, I. Naruse, K. Wagatsuma: Detection of volatile organic compounds in direct current pulse glow discharge plasma by solt plasma ionization mass spectrmetry, Colloquium Spectroscopicum Internationale XL, Pisa, Italy, 6/11-16, 2017.
- K. Wagatsuma, Y. Toya, T. Itagaki: Application of internal standard mathod for determination of 3d-transition metallic elements in flame atomic absorption spectrometry using a multi-wavelength high-resolution spectrometer (invited lecture), 8th. Annual Congress on Analytical and Bioanalytical Techniques, Brussels, Belgium, 8/28-30, 2017.
- K. Wagatsuma: Bias-current modulation method for improving the analytical performance in radio-frequency glow discharge plasma optical emission spectrometry (invited lecture), 6th Global Conference on Materials Science and Engineering (CMSE2017), Beijing, China, 10/24-27, 2017.
- K. Furukawa, K. Wagatsuma: Formation of oxide film on the surface of biomaterial Co-Cr-Mo alloy utilizing oxygen mixed gas glow discharge plasma, 6th Global Conference on Materials Science and Engineering (CMSE2017), Beijing, China, 10/24-27, 2017.
- T. Matsuda, S. Kashiwakura, K. Wagatsuma: Spatial resolution of two-dimensional elemental mapping using scanning laser beam in laser-induced plasma optical emission spectrometry, 6th. Global Conference on Materials Science and Engineering (CMSE2017), Beijing, China, 10/24-27, 2017.
- S. Imashuku, K. Ono, K. Wagatsuma: Cathodoluminescence imaging for detecting non-metallic inclusions in steel (Oral), 11th International Symposium on Atomic Level Characterizations for New Materials and Devices ¡Ç17 (ALC ¡Ç17), Kauai, Hawaii, USA, December 2017.
- H. Taguchi, S. Imashuku, S. Kashiwakura, K. Wagatsuma, S. Fujieda, T. Kawamata, S. Suzuki: Observation of reaction distribution in electrodes of lithium-ion battery using laser-induced breakdown spectroscopy(poster), 11th International Symposium on Atomic Level Characterizations for New Materials and Devices '17, Kauai Beach Resort, Kauai, Hawaii, USA, 2017/12/3-8
- X. Zhang, S. Kashiwakura, K. Wagatsuma: Surface Analysis of Ablated Fe-based Binary Alloys in Laser-induced Breakdown Optical Emission Spectrometry (Poster), 2nd Asian Symposium on Laser Induced Breakdown Spectroscopy, Tokushima, Community Center, Japan, 8/27-31,
2016
- K. Satoh, K. Shimasaki, K. Wagatsuma: Surface modification of Co-Cr-Mo alloy using a hollow cathode type oxygen glow discharge plasma and the characterization by optical emission and X-ray photoelectron measurements, 3rd International Glow Discharge Spectroscopy Symposium (IGDSS 2016), Liverpool, England, Apr. 18-20, 2016.
- K. Wagatsuma: Role of the triplet metastable levels in ionization/excitation of palladium atom in glow discharge plasmas using several plasma gases, 3rd International Glow Discharge Spectroscopy Symposium (IGDSS 2016), Liverpool, England, Apr. 18-20, 2016.
- S. Imashuku, K. Ono, K. Wagatsuma, S. J. Kim, S. Kitamura: Identification of Inclusions in Steel by Scanning Electron Microscope-Cathodoluminescence (SEM-CL) Analysis, SUMIT of MATERIALS SCIENCE, Sendai, Japan, May 2016.
- Y. Toya, T. Itagaki, K. Wagatsuma: Improvement in analytical precision of flame atomic absorption analysis using multi-wavelength high-resolution spectrometer (invited lecture), The 2nd Conference on Analytical Chemistry (CAC2016), June 1-3, 2016, Nanjing, China.
- S. Imashuku, K. Ono, K. Wagatsuma: Scanning electron microscope-cathodoluminescence (SEM-CL) analysis of inclusions in metals, European Conference on X-ray Spectrometry (EXRS2016), Gothenburg, Sweden, June 19-24, 2016.
- S. Imashuku, J. Takahashi, S. Kunimura, K. Wagatsuma: Elemental analysis of dysprosium in neodymium-iron-boron magnet using portable TXRF spectrometer, European Conference on X-ray Spectrometry (EXRS2016), Gothenburg, Sweden, June 19-24, 2016.
- S. Miura, K. Wagatsuma: Effect of Discharge voltage Waveform on depth resolution in Pulsed-voltage Glow Discharge Optical Emission Spectroscopy, CCATM 2016 & ICASI 2016, Beijing, China, September 20-22, 2016.
- K. Ono, S. Imashuku, K. Wagatsuma: Identification of Inclusions in Steel After Deoxidation Process by Cathodoluminescence Method, ICASI 2016 & CCATM 2016, Beijing, China, September 20-22, 2016.
- X. Zhang, K. Wagatsuma: Fundamental Study of Ablation Sampling of Fe-based Binary Alloys in Laser-induced Breakdown Optical Emission Spectrometry, ICASI 2016 & CCATM 2016, Beijing, China, 9/20-22, 2016
- S. Nakahata, S. Kashiwakura, K. Wagatsuma: Quantitative distribution analysis of alumina inclusion particles in ferritic stainless steels bylaser-induced breakdown plasma optical emission spectrometry in single-shot scanning mode (plenary lecture), ICASI 2016 & CCATM 2016, Beijing, China, 9/20-22, 2016.
2015
- S. Sato, K. Wagatsuma, K. Satoh, H. Ogawa, M. Kumagai, M. Imafuku, H. Tashiro, T. Shobu, and S. Suzuki: Characterization of dislocations of cold-drawn pearilitic steels using synchrotron X-ray diffraction, Asia Steel International Conference 2015 (Asia Steel2015), Yokohama, Japan, Oct. 5-8, 2015.
- K. Satoh, S. Sato, M. Ohnuma, T. Naruse, Y. Kim, T. Ebara, S. Suzuki, and K. Wagatsuma: Size distribution of precipitates in age-hardenable electromagnetic stainless steels determined using small angle X-ray scattering, Asia Steel International Conference 2015 (Asia Steel2015), Yokohama, Japan, Oct. 5-8, 2015.
- G. Kasahara, C. Abe, S. Kashiwakura, and K. Wagatsuma: Applications of laser-induced breakdown spectrometry for analysis of steel materials (invited lecture), Asia Steel International Conference 2015 (Asia Steel2015), Yokohama, Japan, Oct. 5-8, 2015.
- K. Wagatsuma, K. Satoh: Contribution of charge-transfer collision to excitations of iron ion in high-power nitrogen microwave induced plasma, Colloquium Spectroscopicum Internationale XXXIX (CSI2015), Figueira da Foz, Portugal, Aug. 31-Sep. 3, 2015.
- K. Satoh and K. Wagatsuma: Biocampatible surface treatment of a Ti alloy with an oxygen glow-discharge plasma and formation mechanisms for the plasma-induced oxide layer, 9th. International Conference CETAS (CETAS2015), Dusseldorf, Germany, May 19-21, 2015.
- K. Wagatsuma, Y. Arai, and S. Sato: Excitation mechanisms in microwave-induced plasma excited with Okamoto-cavity and the spectrometric application to steel analysis, 9th. International Conference CETAS (CETAS2015), Dusseldorf, Germany, May 19-21, 2015.
- G. Kasahara, S. Kashiwakura, and K. Wagatsuma: Distribution analysis of alumina inclusion particles by using laser-induced breakdown plasma-optical emission spectrometry (linvited lecture), 2015 Conference on Analytical Chemistry (CAS2015), Suzhou, China, Jun. 12-14, 2015.
2014
- G. Kasahara, S. Kashiwakura, and K. Wagatsuma: Three-dimensional distribution analysis of alumina inclusions by using laser-induced breakdown plasma optical emission spectrometry in single-shot scanning mode (invited lecture), World Green Energy & Resources Congress 2014, Beijing, China, Nov. 1-3, 2014.
- H. Ogawa, S. Sato, K. Shinoda, H. Tashiro, S, Suzuki, M. Ishikuro, and K. Wagatsuma: X-ray spectrometric analysis on the cementite dissolution of pearlitic steels in cold-drawing, World Green Energy & Resources Congress 2014, Beijing, China, Nov. 1-3, 2014.
- K. Sasaki and K. Wagatsuma: Improvement of depth resolution in glow discharge optical emission spectrometry associated with phase-sensitive detection method, World Green Energy & Resources Congress 2014, Beijing, China, Nov. 1-3, 2014
- K. Wagatsuma, Y. Arai, and S. Sato: Analytical performance in emission spectrometric determination of manganese using Okamoto-cavity microwave induced plasma with nitrogen-oxygen mixed gas - the comparison with argon radio-frequency inductively-coupled plasma (plenary lecture), International Conference on Analysis & Testing of Metallurgical Process & Materials (ICASI 2014),Beijing, China, Oct. 19-21, 2014.
- K. Wagatsuma: Excitation characteristics of nickel atomic lines in argon, neon, and krypton glow discharge plasmas, The Michinoku International Symposium on Analytical Sciences 2014, Sendai, Japan, Aug. 25-26, 2014.
- K. Sasaki and K. Wagatsuma: Phase-sensitive detection method of the emission signal for improving depth resolution in glow discharge optical emission spectroscopy, The Michinoku International Symposium on Analytical Sciences 2014, Sendai, Japan, Aug. 25-26, 2014.
- H. Ogawa, S. Sato, K. Shinoda, H. Tashiro, S, Suzuki, and K. Wagatsuma: Analysis of cementite dissolution of pearlitic steels in cold-drawing process using X-ray scattering and X-ray spectrometry, The Michinoku International Symposium on Analytical Sciences 2014, Sendai, Japan, Aug. 25-26, 2014.
- K. Satoh, S. Sato, S. Suzuki, K. Wagatsuma: Changes of dislocation distribution in different texture components during recovery and recrystallization of cold-rolled Cu sheets, ICOTOM17, Dresden, Germany, August 24-29, 2014.
- K. Wagatsuma: Non-LTE behaviour of argon and krypton glow discharge plasmas estimated from the intensity analysis of nickel atomic lines, the 2nd International Glow Discharge Spectroscopy Symposium, Praha, Czech Republic, Apr. 7-9, 2014.
2013
- L. Zhang, S. Sashiwakura, K. Wagatsuma: Laser-induced plasma atomic emission spectrometry for application to element-based sorting of steel scraps (invited lecture), World Green Energy & Resorces Congress 2013, Changwon, Korea, Oct. 28-29, 2013.
- K. Satoh, S. Sato, K. Wagatsuma: Corrosion resistance of Ti--6Al--4V alloy in surface treatment using an oxygen glow-discharge plasma to suppress the elution of toxic elements into physiological environment, International Symposium for the 70th Anniversary of the Tohoku Branch of the Chemical Society of Japan, Sendai, Japan, September, 2013.
- S. Semboshi, M. Ishikuro, S. Sato, K. Wagatsuma, A. Iwasa, W. Gao, A. Sugawara: Quantitative analyses of precipitates in age-hardenable Cu-Ti alloys using extraction method, International Conference on Processing & Manufacturing of Advanced Materials(THERMEC'2013), Las Vegas, USA, 12/2-12/6, 2013.
- S. Kashiwakura, K. Wagatsuma: Investigations on the calibration lines of chromium and nickel obtained by Fe-Cr and Fe-Ni binary alloys for rapid sorting of stainless steels with the aid of laser-induced breakdown spectroscopy, EMSLIBS 2013, Bari, Italy, 9/15-9/20, 2013.
- K. Satoh, S. Sato, K. Wagatsuma: Synchronized control of pulsed radio-frequency voltage and pulsed bias-current in a glow-discharge plasma excitation source for atomic emission analysis, ASIANALYSIS XII, Fukuoka, Japan, August, 2013.
- G. Kasahara, S. Kashiwakura, K. Wagatsuma: Rapid evaluation of alumina inclusion particles by laser-induced breakdown spectroscopy, Asianalysis XII, Fukuoka, 8/22-8/24, 2013.
- S. Kashiwakura, K. Wagatsuma:Investigations on the calibration curves of copper obtained from Fe-Cu binary alloys by Laser-Indued breakdown spectroscopy, Asianalysis XII, Fukuoka, 8/22-8/24, 2013.
- K. Satoh, S. Sato, K. Wagatsuma:Influence of analytical parameters to the quantitative value of calcium phosphate precipitate on titanium by X-ray fluorescence analysis using fundamental parameter method, The 15th International Conference on Total Reflection X-Ray Fluorescence Analysis and Related Methods (TXRF2013), and the 49th Annual Conference on X-Ray Chemical Analysis, Osaka, Japan, Sep. 23-27, 2013.
- S. Sato, K. Wagatsuma, S. Suzuki, M. Kumagai, M. Imafuku, H. Tashiro, K. Kajiwara, T. Shobu: Line-profile analysis based on energy dispersive X-ray diffraction using high-energy white X-rays, The 15th International Conference on Total Reflection X-Ray Fluorescence Analysis and Related Methods (TXRF2013), and the 49th Annual Conference on X-Ray Chemical Analysis, Osaka, Japan, Sep. 23-27, 2013.
- Y. Arai, S. Sato, K. Wagatsuma: Two-dimensional estimation of Okamoto-cavity Microwave Induced Plasma for optimazing the measuring conditions for the emission spectrometric analysis (invited). AsiaSteel 2012, Beijing, China, Sept. 23-27, 2012.
- S. Kashiwakura, K. Wagatsuma: Precise determination of rare earth elements (REEs) for evaluation of recovery rate by an extraction with a dilute acid, CRETE 2012: 3rd International Conference on Industrial and Hazardous Waste Management, Crete, Greece, Sep. 12-14, 2012.
- S. Sato, K.Wagatsuma, S. Suzuki, M. Kumagai, M. Imafuku, H.Tashiro, K. Kajiwara, T. Shobu: Dislocation characteristics and phase stresses in deformed pearlitic steels determined by X-ray diffraction line-profile analysis, The 8th Pacific Rim International Congress on Advanced Materials and Processing (PRICM-8), Waikoloa, Hawaii, Aug. 4-9, 2013.
2012
- K. Wagatsuma, Y. Arai, S. Sato: Nitridation technique of steel materials by using nitrogen high-power mictrowave-induced plasma (plenary lecture). ISAMAT2012 (The international symposium for advanced materials and analytical techniques 2012), Changwon, Korea, Nov. 20, 2012.
- R. Oka, K. Wagatsuma: Effect of argon gas pressure on the emission intensity from radio-frequency glow discharge plasma with pulsed bias-current introduction. RATEC2012 (Recent advance in analytical techniques for steelmaking industry), Tokyo, Japan, Nov. 28-30, 2012.
- L. Zhang, S. Kashiwakura, K. Wagatsuma: Investigation on the excitation mechanism of Cu II lines in Ar and Ne GDP. RATEC2012 (Recent advance in analytical techniques for steelmaking industry), Tokyo, Japan, Nov. 28-30, 2012.
- S. Kashiwakura, L. Zhang, K. Wagatsuma: The calibration curve obtained from in-air laser induced plasma spectrometry for sorting of steel scraps. RATEC2012 (Recent advance in analytical techniques for steelmaking industry), Tokyo, Japan, Nov. 28-30, 2012.
- S. Sato, Y. Arai, N. Yamashita, A. Kojyo, K. Kadama, N. Ohtsu, Y. Okamoto, K. Wagatsuma: Rapid nitriding treatment using microwave-induced nitrogen plasma at atmospheric pressuure. RATEC2012 (Recent advance in analytical techniques for steelmaking industry), Tokyo, Japan, Nov. 28-30, 2012.
- L. Zhang, S. Kashiwakura, K. Wagatsuma: Comparative studies on the excitation mechanism of copper ionic lines in Ar and Ne glow discharge plasmas. ICASI2012(International committee of analysis in steel and iron industry), Beijing, China, Oct. 31-Nov. 3, 2012.
- S. Kashiwakura, L. Zhang, K. Wagatsuma: Rapid analysis of copper in steel scraps by means of laser-induced plasma spectroscopy. ICASI2012(International committee of analysis in steel and iron industry), Beijing, China, Oct. 31-Nov. 3, 2012.
- K. Wagatsuma: Comparative study on excitation temperature between DC-powered and RF-powered glow discharge plasmas for emission spectrometric analysis (plenary lecture). ICASI2012 (International committee of analysis in steel and iron industry), Beijing, China, Oct. 31-Nov. 3, 2012.
- S. Kashiwakura, L. Zhang, K. Wagatsuma: Rapid quantification of manganese in steel scraps by laser-induced plasma spectroscopy under atomospheric pressure. APLAS BALI 2012: The 7th Asian-Pacific Landfill Syposum -Sustainable Solid Waste Management for a Better Life-, Bali, Indonesia, Oct. 8-11, 2012.
- Y. Arai, S. Sato, K. Wagatsuma: Two-dimensional estimation of Okamoto-cavity Microwave Induced Plasma for optimazing the measuring conditions for the emission spectrometric analysis (invited). AsiaSteel 2012, Beijing, China, Sept. 23-27, 2012.
- S. Kashiwakura, K. Wagatsuma: Precise determination of rare earth elements (REEs) for evaluation of recovery rate by an extraction with a dilute acid, CRETE 2012: 3rd International Conference on Industrial and Hazardous Waste Management, Crete, Greece, Sep. 12-14, 2012.
- S. Sato, E.P. Kwon, S. Fujieda, K. Shinoda, R. Kainuma, K. Wagatsuma, K. Kajiwara, M. Sato, S. Suzuki: Local-strain evolution and crystal rotation of shape memory alloy characterized by Laue method combined with energy dispersive X-ray diffraction, Materials Science and Engineering, Darmstadt, Germany, Sept. 25-27, 2012.
- Y. Arai, S. Sato, K. Wagatsuma: Spectrometric study on nitrization of a steel surface by Okamoto-cavity microwave induced plasma (invited), 2012APWC, Jeju, Korea, Aug. 26-29, 2012
- K. Wagatsuma, Y. Arai, S. Sato, Y. Okamoto: Okamoto-cavity microwave induced plasma using nitrogen-oxygen gas mixtures as an excitation source in atomic emission spectrometry (invited), Analytix-2012, Beijing, China, Mar. 23-25, 2012.
2011
- A. Shimada, C. Abe, K. Wagatsuma: On-site Analysis for Recycling of Steel Materials by Using Laser-induced Plasma Optical Emission Spectrometry (invited), 17th. ATA, Changwon, Korea, Nov. 1-3, 2011.
- H. Hasegawa, S. Sato, Y. Takahashi, K. Wagatsuma: New Analytical Method for Estimating the Size Distribution of Nano Precipitates in Metal Materials by Using Small Angle X-ray Scattering, 17th. ATA, Changwon, Korea, Nov. 1-3, 2011.
- S. Kashiwakura, Y. Kumagai, K. Wagatsuma: Recovery of rare-earth elements from coal fly ash particles generated from coal-fired electric
Power stations with the aid of Acid Washing Process, Sardinia 2011, Santa Marcherita di Pula, Sardinia, Italy, Oct. 3-7, 2011.
- S. Sato, A. Hasegawa, K. Wagatsuma, S. Suzuki:Application of line profile analysis to evaluation of microstructural recovery accompanied with precipitation in aged alloys, Denver X-ray Conference 2011, Denver, USA, Aug. 1-5, 2011.
- K. Wagatsuma: Emission Characteristics of a Microwave-induced Plasma with Nitrogen-Oxygen Mixed Plasma Gases, ICAS 2011, Kyoto, Japan, May. 23-26, 2011.
- S. Kashiwakura, K. Wagatsuma: Transient Response of Emission Signals from a Pulsed Glow Discharge Plasma, ICAS 2011, Kyoto, Japan, May. 23-26, 2011.
- L. Zhang, S. Kashiwakura, K. Wagatsuma: Comparative Study on Excitation Phenomena in Laser Induced Plasmas with Several Plasma Gases, ICAS 2011, Kyoto, Japan, May. 23-26, 2011.
- S. Urushibata, K. Wagatsuma: Effect of the Duty Ratio of Pulsed Bias Current on the Analytical Performance in Radio-Frequency Glow Discharge Plasma Optical Emission Spectrometry Associated with Bias-Current Modulation Technique, CETAS 2011, Luxembourg, May. 17-19, 2011.
- T. Otomo, S. Kurosu, Y. Li, H. Matsumoto, S. Sato, Y. Kiuzumi, K. Wagatsuma, A. Chiba: Static recrystallization behavior of Co-Ni-Cr-Mo superallpy after cold rolling and subsequent heat treatment, TMS 2011, San Diego, USA, Feb. 27 - Mar. 3, 2011.
2010
- M. Matsuura, K. Wagatsuma: "Spetially-resolved observation of the excitation temperature in a glow discharge plasma for atomic emission spectrometry "(keynote, invited), The 4th Asia-Pacific Winter Conference on Plasma Spectromchemistry: Chengdu, China: Nov. 26-30, 2010.
- S. Sato, H. Hirai, S. Araki, K. Wagatsuma: "Effect of excitation states of nitrogen on the surface nitridation of steels " Asia Pacific Interfinish (APIC) 2010, Singapore; Oct. 26, 2010.
- Y. Arai, S. Sato, N. Yamashita, A. Kojyo, Y. Okamoto, and K. Wagatsuma: "Two dimensional observation of nitrogen radicals in a microwave induced nitrogen plasma at atmospheric pressure ", The 16th International Symposium on Advanced Techniques and Applications: Changwon, Korea: Nov. 1-3, 2010.
- K. Wagatsuma: "Removal of Spectral Interference in Radio-frequency Glow Discharge Plasma Optical Emission Spectrometry by Using Bias-current Modulation Technique "(invited), The 16th International Symposium on Advanced Techniques and Applications: Changwon, Korea: Nov. 1-3, 2010.
- H. Kondo, N. Hamada and K. Wagatsuma: "Application of laser ablation- laser induced fluorescence spectroscopy for measurements of non-metallic light elements in steel ", The 10th. ICASI & CCATM 2010 Meeting: Beijing, China: Sept. 12-15, 2010.
- S. Urushibata and K. Wagatsuma: "Bias-current modulation method using a Fourier transform analyser in radio-frequency glow discharge optical emission spectrometry "(plenary lecture), The 10th. ICASI & CCATM 2010 Meeting: Beijing, China: Sept. 12-15, 2010.
- S. Sato, T. Yoshimura, N. Yamada, K. Wagatsuma, and S. Suzuki: "Evolution of texture and dislocations of high-ductile TWIP steel during deformation ", Denver X-ray Conference 2010: Denver, USA: Augsut 2-6, 2010.
2009
- H. Hirai, S. Sato, K. Wagatsuma: "The effect of the excitation state of nitrogen on the surface nitridation of steels using glow-discharge plasma ", The 15th International Symposium on Advanced Technology and Applications : Masan & Changwon, Korea: November 12-13, 2009.
- M. Matsuura, K. Wagatsuma: "Spatially-resolved observation of glow discharge plasma by using a two-dimensionally imaging spectrograph ", The 15th International Symposium on Advanced Technology and Applications : Masan & Changwon, Korea: November 12-13, 2009.
- S. Urushibata, K. Wagatsuma: "Plasma for selective detection of the modulated emission signal with a fast Fourier transform (FFT) analyzer ", The 15th International Symposium on Advanced Technology and Applications : Masan & Changwon, Korea: November 12-13, 2009.
- Y. Sasaki, K. Wagatsuma: "Metallurgical consideration on calibration curve for binary alloy samples in low-pressure argon laser-induced atomic emission spectrometry (invited) ", The 15th International Symposium on Advanced Technology and Applications : Masan & Changwon, Korea: November 12-13, 2009.
- S. Sato, Y. Takahashi, K. Wagatsuma and S. Suzuki: "Characterization of aging behavior of precipitates and dislocations in copper-based alloys ", Denver X-ray Conference 2009: Denver, USA: July 27-31, 2009.
- S. Sato, K. Ohmori, Y. Takahashi, S. Araki: "Analysis of plasma-nitriding layers on Fe-based alloy samples (invited lecture) ",Asia Steel International Conference 2009: Busan, Korea: May 24-27, 2009.
- K. Wagatsuma: "Prescise and rapid determination of minor alloyed elements in steel materials by radio-frequency glow discharge optical emission spectrometry associated with pulsed-bias-current introduction technique(invited) ",Asia Steel International Conference 2009: Busan, Korea: May 24-27, 2009.
- Y. Nishimoto, T. Maeda, K. Wagatsuma: "Rapid determination of gold in MIBK extracts using Okanmoto-cavity microwave-induced plasma atomic emission spectrometry (invited) ",The 7th. Cangwon International Symposium on Advanced Science and Technology: Changwon, Korea: May 28-29, 2009.
- K. Wagatsuma: "High-sensitivity measurement of emission signal from a pulsed radio-frequency glow discharge plasma by using FFT analyzer ",2009 European Winter Conference on Plasma Spectrochemistry: Graz, Austria: Feb. 15-20, 2009.
2008
- K. Wagatsuma: "High-sensitivity detection of emission signal from a radio-frequency glow discharge plasma by using FFT analyzer (keynote lecture) ",The 14th International Symposium on Advanced Techniques and Applications: Masan, Korea: Nov. 23-25, 2008.
- S. Morimoto, T. Ashino, K. Wagatsuma: "Observation of the atmosphere gas temperature when using different types of graphite furnaces in graphite furnace atomic absorption spectrometry (GF-AAS) ", The 14th International Symposium on Advanced Techniques and Applications: Masan, Korea: Nov. 23-25, 2008.
- K. Omori, S. Sato, K. Wagatsuma: "XPS Observation of nitriding layers produced with an Ar-N2 gas glow discharge plasma ", The 14th International Symposium on Advanced Techniques and Applications: Masan, Korea: Nov. 23-25, 2008.
- H. Shimada, K. Wagatsuma: "Spectrochemical analysis of an Fe-Cr alloy in laser-induced plasma spectroscopy - Comparison in the excitation mechanism between neutral atomic lines and monovalent ionic lines- ", The 14th International Symposium on Advanced Techniques and Applications: Masan, Korea: Nov. 23-25, 2008.
- K. Wagatsuma: "Introduction of pulsed bias-current to radio-frequency glow discharge plasma for atomic emission analysis (invited lecture) ", 2008 3rd Asia-Pacific Winter Conference on Plasma Spectrochemistry: Tsukuba, Japan: Nov. 16-21, 2008.
- T. Ashino, H. Shimabukuro, S. Morimoto, K. Wagatsuma: "In-situ measurement of gas temperature at atomization in a graphite furnace for atomic absorption spectrometry by using two-line method ", 2008 3rd Asia-Pacific Winter Conference on Plasma Spectrochemistry: Tsukuba, Japan: Nov. 16-21, 2008.
- C. Kitaoka, K. Wagatsuma: "Comparison in spatially-resolved emission image excited from low-pressure laser-induced plasmas using helium, argon, and krypton (keynote lecture) ", International Conference anf Exhibition on Analysis and Testing of Materials 2008: Beijing, China: Nov. 4-7, 2008.
- S. Sato, Y. Takahashi, T. Sanada, K. Shinoda, K. Wagatsuma, S. Suzuki: "X-ray probe analyses of complicated precipitates formed in copper-base alloys ", Denver X-ray Conference 2008: Denver, USA: Aug. 4-8, 2008.
2007
- C. Kitaoka and K. Wagatsuma: "Observation of two-dimensional image of emission spectra from low-pressure laser-induced plasmas (keynote, invited lecture) ", The 9th Asian Conference on Analytical Science: Jeju Island, Korea: Nov. 4-8, 2007.
- H. Park, K. Wagatsuma and S.C. Lee: "Depth profile analysis of thin film by using glow discharge optical emission spectrometry (GD-OES) ",The 9th Asian Conference on Analytical Science: Jeju Island, Korea: Nov. 4-8, 2007.
- H. Shimabukuro, T. Ashina, K. Wagatsuma: "In-situ determination of atomizing temperature in the graphite furnace by using multi-wavelength simultaneous detection method ", The 13th International Symposium on Advanced Techniques and Applications: Masan, Korea: Nov. 1-3, 2007.
- Y. Zenitani and K. Wagatsuma: "Optimization of experimental conditions in pulsed glow discharge plasma optical emission spectrometry, The 13th International Symposium on Advanced Techniques and Applications: Masan, Korea: Nov.1-3, 2007.
- Y. Sasaki and K. Wagatsuma: "Temporal variation in excitation temperature of low-pressure laser-induced plasma observed with an Echelle spectrometer ", The 13th International Symposium on Advanced Techniques and Applications: Masan, Korea: Nov.1-3, 2007.
- S. Nakamura and K. Wagatsuma: "Excitation Processes of Nickel Ionic Lines from Reduced-pressure Laser-induced Plasmas (invited lecture) ", The 13th International Symposium on Advanced Techniques and Applications: Masan, Korea: Nov.1-3, 2007.
- K. Kodama, K. Wagatsuma and K. Kitagawa: "Development of Emission Spectrometric Technique with Three-Electrode Hollow Cathode Glow Discharge Lamp", The 154th ISIJ Annual Meeting International Symposium, Section C, Recent advance in analytical techniques for steel-making industry: Gifu, Japan: Sep., 2007.
- T. Ashino, K. Takada, M. Ishikuro, T. Itagaki-Sato, F. Sakamoto and K. Wagatsuma: "Chemical Separation and Pre-concentration Techniques for determination of Trace Impurities in Iron and Steels", The 154th ISIJ Annual Meeting International Symposium, Section C, Recent advance in analytical techniques for steel-making industry: Gifu, Japan: Sep. , 2007.
- K. Wagatsuma, S. Nakamura: "Emission characteristics of nickel ionic lines excited by reduced-pressure laser-induced plasmas", The 154th ISIJ Annual Meeting International Symposium, Section C, Recent advance in analytical techniques for steel-making industry: Gifu, Japan: Sep. , 2007.
- T. Ashino, K. Takada, M. Ishikuro, T. Itagaki-Sato, F. Sakamoto and K. Wagatsuma: "Chemical Separation and Pre-concentration Techniques for Determination of Trace Impurities in Metallic Materials", Trends in Sample Preparation 2007 (TRISP07): Seggau Castle, Austria: Jun. , 2007.
- T. Maeda and K. Wagatsuma: "Emission characteristics of Okamoto-cavity microwave-induced plasma in direct introduction of organic solvents and its application to analysis of MIBK extracted from iron-matrix samples", European Winter Conference on Plasma Spectrochemistry 2007: Taormina, Italy: Feb. 18- 24, 2007.
- K. Wagatsuma: "Excitation behavior of iron atomic lines having various excitation energies emitted from glow discharge plasmas using argon, neon, and argon-helium gases ", European Winter Conference on Plasma Spectrochemistry 2007: Taormina, Italy: Feb. 18- 24, 2007.
2006
- T. Ashino, K. Takada, K. Wagatsuma, and K. Abiko: "Evaluation of contaminants derived from experimental instruments for ultra-trace analysis in high-purity metals by HR-ICP-MS ", 2nd Asia-Pacific Winter Conference on Plasma Spectrochemistry: Bankok, Thailand: Nov. 27- Dec. 2, 2006.
- K. Kodama and K. Wagatsuma: "Development of emission spectrometric technique with three-electrode hollow cathode glow discharge lamp", 2nd Asia-Pacific Winter Conference on Plasma Spectrochemistry: Bankok, Thailand: Nov. 27- Dec. 2, 2006.
- M. Tsukiji and K. Wagatsuma: "The emission characteristics of a helium-nitrogen mixed gas glow discharge plasma - the emission source having higher excitation ability for small amounts of sputtered materials (invited lecture)", 2nd Asia-Pacific Winter Conference on Plasma Spectrochemistry: Bankok, Thailand: Nov. 27- Dec. 2, 2006.
- S.C. Lee, H. Park, H.H. Choi and K. Wagatsuma : "Development of soft plasma ionization source for analysis of organic compounds", The 12th International Symposium on Advanced Techniques and Applications: Masan, Korea: Nov. 9-11, 2006.
- K.H. Choi, H. Park , S.C. Lee and K. Wagatsuma : "Development of new sample introduction method in see-through hollow cathode glow discharge optical emission spectrometry", The 12th International Symposium on Advanced Techniques and Applications: Masan, Korea: Nov. 9-11, 2006.
- H. Park and K. Wagatsuma : "Development of new glow discharge ionization source for analyzing organic compounds", The 12th International Symposium on Advanced Techniques and Applications: Masan, Korea: Nov. 9-11, 2006.
- T. Ashino, T. Itagaki-Sato, K. Takada, K. Wagatsuma, and K. Abiko : "Untra trace analysis of impurities in high-purity metals and alloys by high-resolution inductively coupled plasma mass spectrometry with chemical separation and pre-concentration", The 12th International Symposium on Advanced Techniques and Applications: Masan, Korea: Nov. 9-11, 2006.
- C. Kitaoka and K. Wagatsuma : "Observation of two-dimentional emission images from laser-induced plasmas when varying gas species and pressure ", The 12th International Symposium on Advanced Techniques and Applications: Masan, Korea: Nov. 9-11, 2006.
- K. Kodama and K. Wagatsuma : "Emission spectrometric analysis with three-electrode hollow cathode glow dischrge lamp ", The 12th International Symposium on Advanced Techniques and Applications: Masan, Korea: Nov. 9-11, 2006.
- K. Wagatsuma and S. Nakamura: "Emission characteristics of spark discharge plasmas under reduced-pressure conditions (invited lecture) ", The 12th International Symposium on Advanced Techniques and Applications: Masan, Korea: Nov. 9-11, 2006.
- K. Wagatsuma and S. Nakamura: "Time-resolved spectrum of copper emitted from reduced-pressure argon spark discharge plasma and the excitation mechanism (plenary, invited lecture)", The 13th CSM Conference on Analysis & Testing of Materials: Beijing, China: October 14-16, 2006.
- H. Park, and K. Wagatsuma: "Depth profile analysis of thin film by using dc voltage modulation glow discharge optical emission spectrometry (GD-OES)", 2006 FACSS Meeting: Lake Buena Vista, FL, USA: Sept. 24-28, 2006.
- T. Ashino, T. Itagaki-Sato, K. Takada, K. Wagatsuma, and K. Abiko: "Determination of ultra-trace selenium, tellurium, gold, and silver in high-purity iron by high-resolution inductively coupled plasma mass spectrometry after reductive co-precopitation method", The 13th International Conference on Ultra-high Purity Metallic-base Materials: Berlin, Germany: Sept. 10-14, 2006.
- T.M. Naeem, H. Matsuta, and K. Wagatsuma: "Application of laser-ablation sampling to helium hollow-cathode glow discharge plasma for selective detection of the emission signal", LIBS 2006: Montreal, Canada: September 5-8, 2006.
- H. Park, K. Wagatsuma, and S.C. Lee: "Development of soft ionization plasma source for volatile organic compounds", Global Convention of Ethnic Korean Scientists and Engineers 2006: Soul, Korea: July 18-22, 2006.
- K. Wagatsuma: "Application of modulation technique to glow discharge optical emission spectrometry (invited lecture)", Second Baosteel Biennial Academic Conference: Shanghai, China: May 25-26, 2006.
- K. Wagatsuma, and H. Park: "Bulk and in-depth analyses of steel materials using a glow discharge emission source associated with voltage modulation technique", CETAS 7th. International Workshop: Luxembourg, Luxembourg: May 16-20, 2006.
- H. Yasuhara, A. Yamamoto, K. Wagatsuma, and F. Hiramoto: "Development of rapid analytical method of carbon in steels by glow discharge optical emission spectrometry", Asia Steel '06: Kokura, Japan: May 9-11, 2006.
- H. Park, and K. Wagatsuma: "Study on depth profiling of thin films by using voltage modulation glow discharge optical emission spectrometry", Asia Steel '06: Kokura, Japan: May 9-11, 2006.
- T.M. Naeem, H. Matsuta, and K. Wagatsuma: "Development of a laser-ablation-hollow cathode glow discharge emission source and the application to the analysis of steel samples", Asia Steel '06: Kokura, Japan: May 9-11, 2006.
- K. Wagatsuma, H. Honda: "Comparative studies on excitation of nickel ionic lines between Ar-excited and Kr-excited glow discharge plasmas", Winter Conference on Plasma Spectrochemistry 2006: Tucson, USA, January, 8-14, 2006
2005
- Y.Sato, A.Yokoyama, K.Shibata, S.Ogino, Y.Nodasaka. T.Kohgo, K.Tamura, T.Akasaka, M.Uo, K.Motomiya, B.Jeyadevan, M.Ishikuro, R.Hatakeyama, F.Watari and K.Tohji: "Effect of Length on Cytotoxicity of Multi-Walled Carbon Nanotubes against Human Acute Monocytic Leukemia Cell Line THP-1 in Vitro and Subcutaneous Tissue of Rats in Vivo", 2005 Materials Research Society Fall Meeting, Symposium S, Boston, USA, November 28 - December 2, 2005
- T. Ashino, K. Takada, K. Wagatsuma and K. Abiko: "Determination of ultra-trace elements in high-purity iron by high-resolution inductively coupled plasma mass spectrometry after extraction using 4-methyl-2-pentanone", The 12th International Conference on Ultra High Purity Metallic Base Metals, Nagasaki, Japan, November, 7-10, 2005
- K. Takada, T. Ashino, Y. Shimada, T. Itagaki(Sato), F. Sakamoto, T. Syoji, K. Tsumnoyama, K. Wagatsuma and K. Abiko: "Effect of removal of macro elements on determination of ultra-trace elements in high-purity iron and iron-based alloy", The 12th International Conference on Ultra High Purity Metallic Base Metals, Nagasaki, Japan, November, 7-10, 2005
- H. Nagashima, K. Takada, K. Tsunoyama and K. Abiko: "Reduction of blank values on determination of ultra trace amounts of sulfur in ultrahigh-purity iron by High-resolution ICP-MS with sulfide solution", The 12th International Conference on Ultra High Purity Metallic Base Metals, Nagasaki, Japan, November, 7-10, 2005
- K. Kodama, K. Wagatsuma: "Emission characteristics of three-electrode
hollow cathode glow discharge lamp observed with Fast Fourier Transfer
spectrum analyzer", The 11th International Symposium on Advanced Techniques
and Applications: Masan, Korea, November, 7-8, 2005H. Park, K. Wagatsuma:
"Study on an application of dc voltage modulation technique in glow
discharge optical emission spectrometry", The 11th International Symposium
on Advanced Techniques and Applications: Masan, Korea, November, 7-8, 2005
- M. Tsukiji, K. Wagatsuma: "The emission characteristics of silver ionic lines in glow discharge emission spectrometry using helium-nitrogen mixed discharge gas", The 11th International Symposium on Advanced Techniques and Applications: Masan, Korea, November, 7-8, 2005
- G. Kanehisa, K. Wagatsuma: "Emission characteristics of Okamoto-cavity nitrogen-argon microwave induced plasma", The 11th International Symposium on Advanced Techniques and Applications: Masan, Korea, November, 7-8, 2005
- K. Wagatsuma, H. Honda: "Comparison in the excitation mechanisms of nickel ionic lines excited by glow discharge plasmas using different plasma gases", The 11th International Symposium on Advanced Techniques and Applications: Masan, Korea, November, 7-8, 2005
- K. Kodama, K. Wagatsuma: "Observation of modulated plasma in three-electrode hollow cathode glow discharge lamp with Fast Fourier Transfer spectrum analyzer", 2005 FACSS, The 32nd Meeting of the Federation of Analytical Chemistry and Spectroscopy Societies: Quebec City, Canada, October, 9-13, 2005
- K. Wagatsuma, Y. Ushirozawa: "Emission spectrometric analysis of fluorine by using helium radio-frequency glow discharge plasma source assisted with laser ablation sampling", Asia-Pacific Winter Conference on Plasma Spectrochemistry: Chiang Mai, Thailand, April, 25-30, 2005
- K. Wagatsuma, Y. Ushirozawa, and H. Matsuta: "Development of helium radio-frequency glow discharge plasma source associated with laser ablation sampling", European Winter Conference on Plasma Spectrochemistry: Budapest, Hungary, January 30 - February 3, 2005
2004
- T. Fujimura, A. Yamamoto, K. Wagatsuma : "Determination of trace amounts of Mn, Al, Si, and Cr in Fe-based alloys by radio-frequency-powered glow-discharge optical emission spectrometry associated with the bias-current conduction method", The 11th International Conference on Ultra-high Purity Metallic-base Materials: Maryland, USA, December, 6-9, 2004
- K. Takada, T. Ashino, Y. Shimada, T. Itagaki(Sato), F. Sakamoto, T. Syoji, K. Tsumnoyama, K. Wagatsuma and K. Abiko: "Effect of removal of major component on determination of ultra-trace elements in high-purity iron and iron-based alloy", The 11th International Conference on Ultra High Purity Metallic Base Metals, Gaithersburg, USA, December, 6-9, 2004
- K. Wagatsuma, Y. Ushirozawa: "Emission characteristics of helium radio-frequency glow discharge plasma associated with Nd:YAG laser irradiation", The 10th International Symposium on Advanced Analytical Techniques and Applications: Daejeon, Masan, Korea, November, 5-6, 2004
- S. Nakamura, K. Wagatsuma: " Effect of the pressure of plasma gases on the emission characteristics of the laser-induced plasma when using Ar, Kr, and Air", The 10th International Symposium on Advanced Analytical Techniques and Applications: Daejeon, Masan, Korea, November, 5-6, 2004
- S. Sengoku, K. Wagatsuma: "The comparison on spectrochemical characteristics between axial view and radial view in inductively coupled optical emission spectrometry", The 10th International Symposium on Advanced Analytical Techniques and Applications: Daejeon, Masan, Korea, November, 5-6, 2004
- Y. Ushirozawa, K. Wagatsuma : "Laser-ablation sampling technique in helium radio-frequency glow discharge optical emission spectrometry", The 12th Symposium on Laser Spectroscopy: Daejeon, Korea, November, 4-5, 2004
- H. Park, K. Wagatsuma: "Study on applications of dc voltage modulation technique in GD-OES for a thin film analysis", The 31st Annual Conference of the Federation of Analytical Chemistry and Spectroscopy Societies: Portland, USA, October, 6-10, 2004
- T.M. Naeem, K. Wagatsuma: "Sampling modulation technique in radio-frequency powered glow discharge emission source by pulsed laser ablation , ASIANALYSIS VII: Hong-Kong, China, July, 27-31, 2004
- K. Kodama, K. Wagatsuma : "Excitation mechanism for emission lines excited by radio frequency glow discharge plasma associated with bias current introduction", Asia International Symposium on Instrumental Analysis for Various Materials: Sendai, Japan, July, 23-24, 2004
- H. Park, K. Wagatsuma: " Comprehension of dc voltage modulation technique in GD-OES and its analytical applications", Asia International Symposium on Instrumental Analysis for Various Materials: Sendai, Japan, July, 23-24, 2004
- H. Matsuta, T.M. Naeem, K. Wagatsuma: "Emission intensity modulation of radio frequency helium glow-discharge emission sources by laser ablation", Asia International Symposium on Instrumental Analysis for Various Materials: Sendai, Japan, July, 23-24, 2004
- T. Ashino, T. Itagaki, K. Takada, K. Wagatsuma: "Determination of ultra trace selenium, tellurium, gold, and silver in several metal samples by electrothermal atomic absorption spectrometry after reductive co-precipitation with palladium", Asia International Symposium on Instrumental Analysis for Various Materials: Sendai, Japan, July, 23-24, 2004
2003
- H. Park, K. Wagatsuma: "Study on Emission Characteristics in Glow Discharge Plasma by Using Voltage Modulation Technique", 10th. Symposium on Laser Spectroscopy: Daejeon, Korea, November, 7-8, 2003
- T. Maeda, K. Wagatsuma : "Emission Characteristics of High-powered Microwave Induced Plasma by Using Nitrogen-Oxygen Mixture Gas", 10th. Symposium on Laser Spectroscopy: Daejeon, Korea, November, 7-8, 2003
- Y.Ushirozawa, H. Matsuta, K. Wagatsuma: "Development of radio-frequency-powered helium glow discharge optical emission source associated with sampling by laser ablation", 10th. Symposium on Laser Spectroscopy: Daejeon, Korea, November, 7-8, 2003
- K. Kodama, K. Wagatsuma: "Excitation mechanism of nickel and argon emission lines excited by radio-frequency glow discharge plasma associated with bias current introduction", 10th. Symposium on Laser Spectroscopy: Daejeon, Korea, November, 7-8, 2003
- K. Wagatsuma: "Precise determination of alloyed elements in steel samples by voltage modulation glow discharge optical emission spectrometry", FACSS 2003, The 30th Meeting of the Federation of Analytical Chemistry and Spectroscopy Societies, Ft. Lauderdale, USA, October, 19-23, 2003
- Z. Zhang, K. Wagatsuma: "Determination of metal pollutants in industrial wastewater by high power microwave induced air plasma atomic emission spectrometry", BCEIA 2003, The International Beijing Conference and Exhibition on Instrumental Analysis 2003, Beijing, China, October, 13-16, 2003
- K. Wagatsuma, T. Nakahara: "Comparative study on excitation mechanisms in argon radio-frequency inductively-coupled plasma, nitrogen high-power microwave induced plasma, and argon or nitrogen glow discharge plasmas", BCEIA 2003, The International Beijing Conference and Exhibition on Instrumental Analysis 2003, Beijing, China, October, 13-16, 2003
- H. Matsuta, K. Wagatsuma: "Emission characteristics of a low-pressure laser-induced plasma: Selective excitation of ionic emission lines of copper", CSI XXXIII, Colloquium Spectroscopicum Internationale XXXIII, Granada, Spain, September, 7-12, 2003
- K. Wagatsuma, H. Matsuta: "Enhancement factor in the intensities of emission lines excited by radio-frequency glow discharge plasma associated with bias-current introduction", CSI XXXIII, Colloquium Spectroscopicum Internationale XXXIII, Granada, Spain, September, 7-12, 2003
- T. Ashino, K. Takada, K. Wagatsuma, K. Abiko: "Determination of ultra-trace rare earth elements in high purity iron by high-resolution inductively coupled plasma-mass spectrometry", The 10th International Conference on Ultra-high Purity Metallic-base Materials, Saint-Etienne, France, June, 16-20, 2003
- T. Itagaki, K. Takada, K. Wagatsuma, K. Abiko: "Determination of trace arsenic, antimony and tin in high purity iron and low alloy steel by ICP optical emission spectrometry from axial view after the separation of co-precipitation with manganese dioxide", The 10th International Conference on Ultra-high Purity Metallic-base Materials, Saint-Etienne, France, June, 16-20, 2003
- Y. Shimada, K. Tsunoyama, K. Takada and K. Abiko: "Determination of Trace amounts of Platinum, Palladium, Rhodium and Iridium in High Purity Iron by ICP-OES and ICP-MS after coprecipitation with Tellurium", The 10th International Conference on Ultra-high Purity Metallic-base Materials, Saint-Etienne, France, June, 16-20, 2003
- K. Wagatsuma: "Radio-frequency glow discharge emission source boosted by bias-current introduction and its application to determination of minor elements in steel", European Winter Conference on Plasma Spectrochemistry: Garmisch-Partenkirchen, Germany, January, 12-17, 2003
2002
- K. Wagatsuma: "Application of modulation technique to dc- and rf-powered glow discharge optical emission spectrometry", The 8th International Symposium on Advanced Analytical Techniques and Applications: Masan, Korea, November, 4-5, 2002
- K. Wagatsuma: "Application of modulation technique to glow discharge optical emission spectrometry", International Symposium on GDOES for surface analysis: Yokohama, Keio University, Japan, November, 19-21, 2002