Development of the Isotope Analysis Technique for Inorganic Trace Elements using Laser Ablation Assisted Resonance Ionization Mass Spectrometry (LA-RIMS)
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概要
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We have developed and assessed LA-RIMS as the isotope analysis method for trace inorganic elements in agricultural products. We used magnesium isotope analysis to verify that LA-RIMS had the capability to identify the production areas with the required precision of 0.3%. We demonstrated direct measurements of trace strontium (sub ppm level) in brown rice and confirmed that the isotope analysis precision was improved through the signal intensity enhancement by increasing the ablation power and expanding the laser spot. For the present system, we estimated the strontium isotope ratio of 87Sr/86Sr to be 0.69±0.10 (14%). We concluded that the direct isotope analysis for trace inorganic elements such as strontium in brown rice using LA-RIMS had an advantage under the serious situation of isobaric interference and had sufficient capability to identify agricultural production areas.
- 社団法人 日本原子力学会の論文
- 2006-04-25
著者
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渡辺 賢一
名古屋大学
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Higuchi Yuki
Department Of Quantum Engineering Graduate School Of Engineering Nagoya University
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Watanabe Kenichi
Department of Clinical Pharmacology, Niigata University of Pharmacy and Applied Life Sciences
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KAWARABAYASHI Jun
Department of Quantum Engineering, Graduate School of Engineering, Nagoya University
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IGUCHI Tetsuo
Department of Quantum Engineering, Graduate School of Engineering, Nagoya University
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河原林 順
名古屋大・工
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Watanabe Kenichi
Department Of Clinical Pharmacology Faculty Of Pharmaceutical Sciences Niigata University Of Pharmac
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Iguchi T
Graduate School Of Engineering Nagoya University
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Iguchi Tetsuo
Department Of Nuclear Engineering Faculty Of Engineering The University Of Tokyo
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Kawarabayashi Jun
Nagoya University
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Watanabe Kenichi
First Department Of Internal Medicine School Of Medicine University Of Occupational And Environmenta
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Higuchi Yuki
Department Of Materials Science And Technology Niigata University
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IGUCHI Tetsuo
Physics and Energy Engineering, Graduate School of Engineering, Nagoya University
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Iguchi Tetsuo
Department Of Quantum Engineering Nagoya University
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