发布时间:2024-05-27 17:49:26 - 更新时间:2024年06月29日 15:22
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本标准规定了衫(Sm)-钕(Nd)同位素地质年龄和钕(Nd)同位素比值的测定方法。 本标准适用于全岩、单矿物Sm-Nd同位素地质年龄及Nd同位素比值的测定
Determination of Sm-Nd Isotope Geological Age and Neodymium Isotope Ratio
本标准规定了40Ar-39Ar同位素地质年龄及氩同位素比值的测定方法。 本标准适用于全岩、单矿物的40Ar-39Ar同位素年龄及氩同位素比值的测定
Determination of 40Ar-39Ar Isotope Geological Age and Argon Isotope Ratio
1.1 This specification covers the classification, processing, and properties of nuclear grade graphite billets with dimensions
Standard Specification for Isotropic and Near-isotropic Nuclear Graphites
1.1 This specification covers the classification, processing, and properties of nuclear grade graphite billets with dimensions sufficient to meet
Standard Specification for Isotropic and Near-isotropic Nuclear Graphites
本标准规定了铷锶同位素地质年龄及锶同位素比值的测定方法。 本标准适用于全岩、单矿物的铷锶同位素年龄及锶同位素比值的测定
Rubidium strontium isotope geological age and strontium isotope ratio determination of rocks and minerals
本标准规定了稳定同位素氖气的要求、试验方法、检验规则、标识、包装、运输和贮存、安全要求。 本标准适用于以纯氖气为原料、用热扩散法生产的稳定同位素氖气
Stable isotope gaseous neon
本标准规定了硅同位素的分析方法。 本标准适用于各种含硅物质的硅同位素测定
Determination of silicon isotopic composition
Iodine isotope detection in water
本文件规定了稳定同位素分析仪测定枸杞中碳、氮稳定同位素比值的方法。 本文件适用于枸杞中碳、氮稳定同位素比值的测定
Determination of Stable Isotope Ratio of Carbon and Nitrogen in Lycium Barbarum by Stable Isotope Analyzer Method
Radioisotope product code
Caprylic acid labeled with stable isotope 13C and amino acid labeled with stable isotope 15N (2021)
同位素丰度测量基准方法适用于使用电感耦合等离子体质谱仪(ICP-MS)、热电离质谱仪(TIMS)、同位素比质谱仪(IRMS)等类型质谱仪器准确测量元素的同位素丰度、组成或同位素比值
Primary Method of Isotopic Abundance Measurement
本标准规定了钾氩同位素地质年龄的测定方法。 本标准适用于岩石、矿物钾氩同位素年龄的测定
Potassium Argon Isotope Geological Age Determination
同位素稀释质谱法(isotope dilution mass spectrometry,简称IDMS)原则上只适用于测定多核素元素或其化合物的含量,对于那些虽属单核素元素,但能找到长寿命放射性同位素作稀释剂的元素,也可以用该法测定,如碘。本规范适用于机成分量的同位素稀释质谱方法分析测量,有机成分的
Primary Method of Isotope Dilution Mass Spectrometry
The scope of this report is limited to a discussion of candidate radioisotope power systems which are presently in varying stages of development
Radioisotope Power Systems
本标准规定了衫(Sm)-钕(Nd)同位素地质年龄和钕(Nd)同位素比值的测定方法。 本标准适用于全岩、单矿物Sm-Nd同位素地质年龄及Nd同位素比值的测定
Determination of Sm-Nd Isotope Geological Age and Neodymium Isotope Ratio
本标准规定了40Ar-39Ar同位素地质年龄及氩同位素比值的测定方法。 本标准适用于全岩、单矿物的40Ar-39Ar同位素年龄及氩同位素比值的测定
Determination of 40Ar-39Ar Isotope Geological Age and Argon Isotope Ratio
1.1 This specification covers the classification, processing, and properties of nuclear grade graphite billets with dimensions
Standard Specification for Isotropic and Near-isotropic Nuclear Graphites
1.1 This specification covers the classification, processing, and properties of nuclear grade graphite billets with dimensions sufficient to meet
Standard Specification for Isotropic and Near-isotropic Nuclear Graphites
本标准规定了铷锶同位素地质年龄及锶同位素比值的测定方法。 本标准适用于全岩、单矿物的铷锶同位素年龄及锶同位素比值的测定
Rubidium strontium isotope geological age and strontium isotope ratio determination of rocks and minerals
本标准规定了稳定同位素氖气的要求、试验方法、检验规则、标识、包装、运输和贮存、安全要求。 本标准适用于以纯氖气为原料、用热扩散法生产的稳定同位素氖气
Stable isotope gaseous neon
本标准规定了硅同位素的分析方法。 本标准适用于各种含硅物质的硅同位素测定
Determination of silicon isotopic composition
Iodine isotope detection in water
本文件规定了稳定同位素分析仪测定枸杞中碳、氮稳定同位素比值的方法。 本文件适用于枸杞中碳、氮稳定同位素比值的测定
Determination of Stable Isotope Ratio of Carbon and Nitrogen in Lycium Barbarum by Stable Isotope Analyzer Method
Radioisotope product code
Caprylic acid labeled with stable isotope 13C and amino acid labeled with stable isotope 15N (2021)
同位素丰度测量基准方法适用于使用电感耦合等离子体质谱仪(ICP-MS)、热电离质谱仪(TIMS)、同位素比质谱仪(IRMS)等类型质谱仪器准确测量元素的同位素丰度、组成或同位素比值
Primary Method of Isotopic Abundance Measurement
本标准规定了钾氩同位素地质年龄的测定方法。 本标准适用于岩石、矿物钾氩同位素年龄的测定
Potassium Argon Isotope Geological Age Determination
同位素稀释质谱法(isotope dilution mass spectrometry,简称IDMS)原则上只适用于测定多核素元素或其化合物的含量,对于那些虽属单核素元素,但能找到长寿命放射性同位素作稀释剂的元素,也可以用该法测定,如碘。本规范适用于机成分量的同位素稀释质谱方法分析测量,有机成分的
Primary Method of Isotope Dilution Mass Spectrometry
The scope of this report is limited to a discussion of candidate radioisotope power systems which are presently in varying stages of development
Radioisotope Power Systems