isotope ratio mass spectrometryとは 意味・読み方・使い方

The hydrogen stable isotope ratio, an oxygen stable isotope ratio and/or a carbon stable isotope ratio about edible and inedible parts of a plural kinds of biomasses are measured beforehand as reference data by using a mass spectrometry, and collation data obtained by conducting a similar measurement about a biomass sample being an object to be determined are compared with the reference data.例文帳に追加

複数種類のバイオマスの可食部および非食部について、水素安定同位体比と、酸素安定同位体比および／または炭素安定同位体比とを質量分析により測定して基準データとして予め取得し、判別対象のバイオマス試料について同様に測定した照合データを基準データと比較する。 - 特許庁

To provide a water electrolysis device that can electrolyze a very small quantity of water, and moisture in gas, such as vapor, and a solid, such as a rock by 100%, and hence can rapidly analyze hydrogen isotope ratio and oxygen isotope ratio regardless of a very small quantity of moisture, and to provide a pretreatment method of mass spectrometry.例文帳に追加

微量な水や、水蒸気等の気体や岩石等の固体中の水分を１００％電気分解することができ、よってごく微量の水分であっても水素同位体比・酸素同位体比の迅速な分析を可能とすることができる水電解装置及びこれを利用した質量分析の前処理方法を提供すること。 - 特許庁

The polyacrylic acid (salt) based water-absorbing resin is a polyacrylic acid (salt) based water-absorbing resin which has an internal cross linkage structure obtained by carrying out polymerization of a water-soluble unsaturated monomer, and is characterized in that a carbon stable isotope ratio (δ^13C) measured by an accelerator mass spectrometry is at least -20 per mill.例文帳に追加

水溶性不飽和単量体を重合して得られる内部架橋構造を有するポリアクリル酸（塩）系吸水性樹脂であって、加速器質量分析法によって測定される炭素安定同位体比（δ^１３Ｃ）が−２０‰以上であることを特徴とする、ポリアクリル酸（塩）系吸水性樹脂。 - 特許庁

In another embodiment, the hydrogen stable isotope ratio of a fatty acid derivative obtained by methyl esterifying an extracted fatty acid component is measured beforehand as reference data about rice samples in a plurality of production areas, by using the mass spectrometry, and collation data obtained by conducting a similar measurement about a rise sample of a production area being an object to be determined are compared with the reference data.例文帳に追加

別の態様では、複数の産地におけるコメ試料について、脂肪酸成分を抽出しメチルエステル化して得た脂肪酸誘導体の水素安定同位体比を質量分析により測定して基準データとして予め取得し、産地判別対象のコメ試料について同様に測定した照合データを基準データと比較する。 - 特許庁