Search Results - "Ohata, Masaki"

Effect of Long-time Heating for Polyvinyl Chloride and Polypropylene Resin Pellet Certified Reference Materials for Heavy Metal Analysis by OHATA, Masaki

“…The effect of long-time heating for both polyvinyl chloride (PVC) and polypropylene (PP) resin pellet certified reference materials (CRMs) for heavy metal…”
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Direct Quantitation of 135Cs in Spent Cs Adsorbent Used for the Decontamination of Radiocesium-Containing Water by Laser Ablation Inductively Coupled Plasma Mass Spectrometry by Asai, Shiho, Ohata, Masaki, Hanzawa, Yukiko, Horita, Takuma, Yomogida, Takumi, Kitatsuji, Yoshihiro

“…The long-term safety assessment of spent Cs adsorbents produced during the decontamination of radiocesium-containing water at the Fukushima Daiichi nuclear…”
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Spectroscopic Characteristic and Analytical Capability of Ar–N2 Inductively Coupled Plasma in Axially Viewing Optical Emission Spectrometry by OHATA, Masaki

“…The spectroscopic characteristics and analytical capability of argon–nitrogen (Ar–N2) inductively coupled plasma (ICP) in axially viewing optical emission…”
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Accurate determination and certification of bromine in plastic by isotope dilution inductively coupled plasma mass spectrometry by Ohata, Masaki, Miura, Tsutomu

“…[Display omitted] •Accurate analytical method of Br in plastic was studied by isotope dilution ICPMS.•A microwave acid digestion using quartz vessel was…”
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Research Progress on Gas to Particle Conversion–Gas Exchange ICP-MS for Direct Analysis of Ultra-trace Metallic Compound Gas by OHATA, Masaki, NISHIGUCHI, Kohei

“…A novel gas to particle conversion–gas exchange technique coupled with inductively coupled plasma mass spectrometry (GPD-GED-ICP-MS) was recently proposed for…”
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Merging Pd0/PdII Redox and PdII/PdII Non‐redox Catalytic Cycles for the Allylarylation of Electron‐Deficient Alkenes by Semba, Kazuhiko, Ohta, Naoki, Paulus, Fritz, Ohata, Masaki, Nakao, Yoshiaki

“…An allylarylation of electron‐deficient alkenes with aryl boronates and allylic carbonates has been developed. This method allows access to a wide variety of…”
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Exploring the Degradation of Acrylonitrile Butadiene Styrene Resin Certified Reference Material for Heavy Metal Analysis by Ohata, Masaki, Hioki, Akiharu

“…The degradation of acrylonitrile butadiene styrene (ABS) resin certified reference materials (CRMs) for heavy metal analysis was found. The masses of the ABS…”
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Studies on Isotope Ratio Measurement of Cl by Inductively Coupled Plasma Triple-quad Mass Spectrometry by OHATA, Masaki, ZHU, Yanbei, NONOSE, Naoko

“…Fundamental studies on isotope ratio measurement of Cl were carried out using inductively coupled plasma triple-quad mass spectrometry (ICP-MS/MS) and the…”
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Evaluation of the Calibration Method for Accurate Analysis of Dissolved Silica by Continuous Flow Analysis by CHEONG, Chikako, SAKAGUCHI, Aya, SUEKI, Keisuke, OHATA, Masaki

“…For accurately determining nutrients in seawater by continuous flow analysis (CFA), the characteristic of the calibration curve was examined in detail. Under…”
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Applicable Measuring Range of Two-Electrode Type Commercial Electrolytic Conductivity Meter for Accurate Determination of Electrolytic Conductivity by Hibino, Yuya, Asakai, Toshiaki, Suzuki, Toshihiro, Ohata, Masaki

“…Applicable measuring range of electrolytic conductivity (EC) for commercially available two-electrode type EC meter was examined. The measurement error caused…”
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Determination of hexavalent chromium in plastic certified reference materials by X-ray absorption fine structure analysis by Ohata, Masaki, Matsubayashi, Nobuyuki

“…X-ray absorption fine structure (XAFS) analysis with transmission mode was used to determine the percentages of hexavalent chromium {Cr(VI)} in total Cr in…”
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Effect of Long-time X-ray Irradiation on Cr and Hg in a Polypropylene Disk Certified Reference Material Observed during Measurements by X-ray Fluorescence Spectrometry by OHATA, Masaki, KIDOKORO, Toshihiro

“…The effect of long-time X-ray irradiation on Cr and Hg in a polypropylene disk certified reference material (PP disk CRM, NMIJ CRM 8136-a) during measurements…”
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Gas to Particle Conversion-Gas Exchange Technique for Direct Analysis of Metal Carbonyl Gas by Inductively Coupled Plasma Mass Spectrometry by Nishiguchi, Kohei, Utani, Keisuke, Gunther, Detlef, Ohata, Masaki

“…A novel gas to particle conversion-gas exchange technique for the direct analysis of metal carbonyl gas by inductively coupled plasma mass spectrometry (ICPMS)…”
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Effect of Long-time Heating for Elements from Flame Retardants in Acrylonitrile Butadiene Styrene and Polycarbonate Resin Disks by OHATA, Masaki, KIDOKORO, Toshihiro, OTAKE, Takamitsu, ITOH, Nobuyasu, HANARI, Nobuyasu

“…The effect of long-time heating for elements from flame retardants (FRs) such as dechlorane plus (DP), tetrabromobisphenol A (TBBPA), triphenyl phosphate…”
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Self-aggregation of Synthetic Zinc Chlorophyll Derivatives Possessing 31-Hydroxy or Methoxy Group and 131-Mono- or Dicyanomethylene Moiety in Nonpolar Organic Solvents as Models of Chlorosomal Bacteriochlorophyll-d Aggregates by Tamiaki, Hitoshi, Kuno, Masaki, Ohata, Masaki

“…Methyl 131‐(di)cyanomethylene‐pyropheophorbides were synthesized by Knoevenagel reactions of the corresponding 131‐oxo‐chlorins prepared from modifying…”
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Development of PVC and PP Resin Pellet Certified Reference Materials for Heavy Metal Analysis with Respect to the RoHS Directive by OHATA, Masaki, HIOKI, Akiharu

“…The PVC (polyvinyl chloride) and the PP (polypropylene) resin pellet certified reference materials (CRMs, NMIJ CRM 8123-a and 8133-a) with respect to the RoHS…”
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Determination of Ultra-trace Metal Impurities in High-purity Cadmium Using Inductively Coupled Plasma Mass Spectrometry after Matrix Separation with Anion Exchange Resin by WADA, Ayaka, NONOSE, Naoko, OHATA, Masaki, MIURA, Tsutomu

“…The analytical method for ultra-trace metal impurities at μg kg−1 level in high-purity Cd was examined by inductively coupled plasma mass spectrometry (ICP-MS)…”
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Examination of the Mass Transfer of Additive Elements in Barium Titanate Ceramics during Sintering Process by Laser Ablation ICP-MS by SAKATE, Daisuke, IWAZAKI, Yoshiki, KON, Yoshiaki, YOKOYAMA, Takaomi, OHATA, Masaki

“…The mass transfer of additive elements during the sintering of barium titanate (BaTiO3) ceramic was examined by laser ablation inductively coupled plasma mass…”
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Determination of 107Pd in Pd purified by selective precipitation from spent nuclear fuel by laser ablation ICP-MS by Asai, Shiho, Ohata, Masaki, Yomogida, Takumi, Saeki, Morihisa, Ohba, Hironori, Hanzawa, Yukiko, Horita, Takuma, Kitatsuji, Yoshihiro

“…Determination of radiopalladium 107 Pd is required to ensure radiation safety of the Pd extracted from spent nuclear fuel for recycling or disposal. We…”
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Comparison of 265 nm Femtosecond and 213 nm Nanosecond Laser Ablation Inductively Coupled Plasma Mass Spectrometry for Pb Isotope Ratio Measurements by OHATA, Masaki, NONOSE, Naoko, DORTA, Ladina, GÜNTHER, Detlef

“…The analytical performance of 265 nm femtosecond laser ablation (fs-LA) and 213 nm nanosecond laser ablation (ns-LA) systems coupled with multi-collector…”
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