共找到 150 條與 氧同位素比值 相關(guān)的標(biāo)準(zhǔn)，共 10 頁(yè)
Fruit and vegetable juices - Determination of the stable carbon isotope ratio (13C/12C) in the pulp of fruit juices - Method using isotope ratio mass spectrometry
Fruit and vegetable juices - Determination of the stable hydrogen isotope ratio (2H/1H) of water from fruit juices - Method using isotope ratio mass spectrometry
Food authenticity - Determination of C and/or N isotope ratios in food by Elemental Analyser - Isotope Ratio Mass Spectrometry (EA-IRMS); German and English version prEN 18054:2024
本文件規(guī)定了通過(guò)元素分析儀-同位素比質(zhì)譜法(EA-IRMS)測(cè)定食品材料中碳和/或氮同位素比的儀器分析方法。按照本文件獲得的同位素比表示為相對(duì)于國(guó)際測(cè)量標(biāo)準(zhǔn)的δ13C和/或δ15N值。本文件不適用于樣品制備。假設(shè)食品樣品已進(jìn)行必要的預(yù)處理和均質(zhì)化。同樣，本文件不涵蓋所獲得的同位素δ值的解釋。遵循
Food authenticity. Determination of C and/or N isotope ratios in food by Elemental Analyser. Isotope Ratio Mass Spectrometry (EA-IRMS)
Fruit and Vegetable Juices - Determination of the Stable Carbon Isotope Ratio (13C/12C) of Sugars from Fruits Juices - Method Using Isotope Ratio Mass Spectrometry
Fruit and Vegetable Juices - Determination of the Stable Hydrogen Isotope Ratio (2H/1H) of Water from Fruit Juices - Method Using Isotope Ratio Mass Spectrometry
本標(biāo)準(zhǔn)規(guī)定了碳酸鹽巖成巖環(huán)境劃分方法、劃分標(biāo)準(zhǔn)與成巖演化序列。 本標(biāo)準(zhǔn)適用于碳酸鹽巖成巖環(huán)境劃分
Carbonate Diagenetic Environment Classification
本標(biāo)準(zhǔn)規(guī)定了水中鍶的熱電離同位素質(zhì)譜法和多接收電感耦合等離子體質(zhì)譜法測(cè)定鍶同位素豐度比的方法。 本標(biāo)準(zhǔn)適用于水溶液中鍶的同位素豐度比的測(cè)定
Determination of strontium isotopic ratios in aqueous solution
Draft Document - Food authenticity - Determination of C and/or N isotope ratios in food by Elemental Analyser - Isotope Ratio Mass Spectrometry (EA-IRMS); German and English version prEN 18054:2024
This European Prestandard specifies a method forThe determination of the stable carbon isotoperatio of the pulp in fruit juices.The determination
Fruit and vegetable juices - Determination of the stable carbon isotope ratio (13C/12C) in the pulp of fruits juices - Method using isotope ratio mass spectrometry
Food authenticity - Determination of C and/or N isotope ratios in food by Elemental Analyser - Isotope Ratio Mass Spectrometry (EA-IRMS); German and English version prEN 18054:2024 / Note: Date of issue 2024-02-16*CD-ROM
Draft Document - Food authenticity - Determination of C and/or N isotope ratios in food by Elemental Analyser - Isotope Ratio Mass Spectrometry (EA-IRMS); German and English version prEN 18054:2024
BS EN 18054 Food authenticity. Determination of C and/or N isotope ratios in food by Elemental Analyser. Isotope Ratio Mass Spectrometry (EA-IRMS)
本文件規(guī)定了鈾系不平衡地質(zhì)年齡和鈾、針同位素比值的測(cè)定方法。 本文件適用于處于封閉體系的陸相和海洋碳酸鹽巖(如洞穴堆積物石筍、鐘乳石、海洋中未發(fā)生重結(jié)晶的珊瑚礁等)的鈾系不平衡地質(zhì)年齡及鈾、針同位素比值的測(cè)定
Isotope analysis methods for geological samples - Part 11: Determination of uranium series disequilibrium geological age and uranium-thorium isotope ratios in carbonate rocks - Alpha spectrometry
Fruit and Vegetable Juices - Determination of the Stable Hydrogen Isotope Ratio (2H/1H) of Water from Fruit Juices - Method Using Isotope Ratio Mass Spectrometry
