共找到 150 條與 碳同位素比值 相關(guān)的標(biāo)準(zhǔn)，共 10 頁(yè)
This European Prestandard specifies a method for the determination of the stable oxygen isotope ratio (18 O/16 O) of water from fruit juices
Fruit and vegetable juices - Determination of the stable oxygen isotope ratio (18O/16O) of water from 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
Fruit and Vegetable Juices - Determination of the Stable Oxygen Isotope Ratio (18O/16O) of Water from Fruit Juices - Method Using Isotope Ratio Mass Spectrometry
本文件規(guī)定了頁(yè)巖氣吸附氣/游離氣比例的甲烷碳同位素定量法的目標(biāo)、任務(wù)、基礎(chǔ)資料、必要的儀器設(shè)備、采集與運(yùn)輸方式、測(cè)試方法及技術(shù)要求。 本文件適用于頁(yè)巖氣井不同生產(chǎn)階段吸附氣/游離氣比例的甲烷碳同位素定量評(píng)價(jià)
Shale gas Determination of adsorbed gas/free gas ratio Methane carbon isotope quantitative method
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
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
1方法原理和流程 1.1原理 1.2 分析流程 2 儀器設(shè)備及試劑材料 2.1 儀器設(shè)備 2.2試劑材料 3 測(cè)試步驟 3.1 粉末樣品采集 3.2樣品化學(xué)處理 3.3 空白溶液的制備 3.4 同位素測(cè)定
Determination of Uranium content and high-precision isotope ratio (238U/235U) in carbonates by multi-collector inductively coupled plasma mass spectrometry
BS EN 18054 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 Hydrogen Isotope Ratio (2H/1H) of Water from Fruit Juices - Method Using Isotope Ratio Mass Spectrometry
Identification method of glacial acetic acid and counterfeit vinegar Gas chromatography-stable isotope ratio mass spectrometry
Fruit and vegetable juices. Determination of the stable oxygen isotope ratio (18O/16O) of water from fruit juices. Method using isotope ratio mass spectrometry.
