Stable hydrogen and oxygen isotope analysis of organic materials by thermal conversion elemental analyzer / isotope mass spectrometer (TCEA)

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  • Suzuki Yaeko
    Japan Certification Services, Inc.:(Present office)Food Analysis Laboratory, Analytical Science Division, National Food Research Institute
  • Sato Rie
    SI Science CO., LTD.

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  • 熱分解型元素分析/同位体比質量分析計(TCEA/IRMS)を用いた有機物の水素・酸素安定同位体比の測定方法における留意点とその応用
  • ネツ ブンカイガタ ゲンソ ブンセキ ドウイタイヒ シツリョウ ブンセキケイ TCEA IRMS オ モチイタ ユウキブツ ノ スイソ サンソ アンテイ ドウイタイヒ ノ ソクテイ ホウホウ ニ オケル リュウイテン ト ソノ オウヨウ

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Abstract

Hydrogen and oxygen isotope analysis has become increasingly important as a potential powerful tool for the reconstruction of climatic conditions, the wildlife forensics and food authenticity. The development of thermal conversion elemental analyzer/isotope ratio mass spectrometer (TCEA/IRMS) facilitates a rapid and routine analysis of hydrogen and oxygen isotope ratios for a great number of samples. Despite a rapidly growing literature on applications of hydrogen and oxygen isotope ratios in geochemistry, ecology and food sciences, the lack of reliable technique to measure hydrogen and oxygen isotope ratios at organic materials is regrettable. In this paper, we review the technical fundamentals (e.g. calibration and standardization) in measurement of hydrogen and oxygen isotope ratios of organic materials. We also address an application to the authenticity of food and chemical materials.

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