共找到 150 條與 碳同位素比值 相關的標準，共 10 頁
本標準規定了水上溢油的穩定碳同位素指紋鑒別的樣品采集、樣品前處理及制備、樣品分析、樣品鑒別及質量控制措施。本標準適用于水上溢油，包括原油、燃油及其他石油產品的鑒別
Stable carbon isotope fingerprint identification protocol for oil spills on water
警示：使用本部分的人員應有正規實驗室工作的實踐經驗。本部分并未指出所有可能的安全問題。使用者有責任采取適當的安全和健康措施，并保證符合國家有關法規規定的條件。 GB/T 18340的本部分規定了有機質穩定碳同位素組成分析中質譜計的技術性能指標、樣品制備、質譜分析的方法及精密度等。 本部分適用于
Organic geochemical analysis method for geological samples.Part 2:Determination of organic carbon stable isotopic component.Isotopic mass spectrometry
本文件規定了水中顆粒有機碳碳同位素組成測定方法。 本文件適用于地下水、地表水、海水中顆粒有機碳碳同位素組成測定。水中顆粒有機碳碳同位素測定的最低碳含量大于或等于15μg
Methods for isotopic analysis of geological samples - Part 31: Determination of carbon isotopic composition of particulate organic carbon in water - Continuous flow combustion method
本文件規定了穩定同位素分析儀測定枸杞中碳、氮穩定同位素比值的方法。 本文件適用于枸杞中碳、氮穩定同位素比值的測定
Determination of Stable Isotope Ratio of Carbon and Nitrogen in Lycium Barbarum by Stable Isotope Analyzer Method
本標準規定了碳穩定同位素測定的氣相色譜-同位素比質譜法。本標準適用于天然和人工樣品中碳穩定同位素比值的測定
Determination of glycerol carbon stable isotope ratio in exported wines by liquid chromatography-stable isotope ratio mass spectrometry
使用微量氣體預濃縮-同位素比值質譜聯用儀（TGC-IRMS)測定土壤中三種無機態氮 (銨態氮 NH4+、硝態氮 NO3- 和亞硝態 NO2-)的15N豐度的方法。 本文件適用于 15N 示蹤試驗 (f15N ≤30%) 后混合均勻的土壤
Soil Quality Determination of Inorganic Nitrogen 15N Abundance in Soil Stable Isotope Ratio Mass Spectrometry
本標準規定了40Ar-39Ar同位素地質年齡及氬同位素比值的測定方法。 本標準適用于全巖、單礦物的40Ar-39Ar同位素年齡及氬同位素比值的測定
Determination of 40Ar-39Ar Isotope Geological Age and Argon Isotope Ratio
本標準規定了衫(Sm)-釹(Nd)同位素地質年齡和釹(Nd)同位素比值的測定方法。 本標準適用于全巖、單礦物Sm-Nd同位素地質年齡及Nd同位素比值的測定
Determination of Sm-Nd Isotope Geological Age and Neodymium Isotope Ratio
Determination of carbon stable isotope ratio of ethanol in alcoholic beverages for export Gas chromatography-stable isotope ratio mass spectrometry
本標準規定了銣鍶同位素地質年齡及鍶同位素比值的測定方法。 本標準適用于全巖、單礦物的銣鍶同位素年齡及鍶同位素比值的測定
Rubidium strontium isotope geological age and strontium isotope ratio determination of rocks and minerals
Method for determination of rare gas isotope ratios
ADOPTED_FROM:ENV 12140:1996 This draft European Standard specifies a method for the determination of the stable carbon isotope ratio (13C/12C
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 carbon isotope ratio (13C/12C) of sugars from fruits juices - Method using isotope ratio mass spectrometry
ADOPTED_FROM:ENV 13070:1998 This draft European Prestandard specifies a method for the determination of the stable carbon isotope ratio of the pulp
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
This European Prestandard specifies a method for the determination of the stable carbon isotope ratio (13C/12C) of sugars from fruit juices by isotope
Fruit and vegetable juices - Determination of the stable carbon isotope ratio (13C/12C) of sugars from fruit juices - Method using isotope ratio mass spectrometry
