地质标准物质均匀性检验方法评介与探讨
A Review on Homogeneity Testing Techniques for Geochemical Reference Materials in China
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摘要: 评介了目前中国地质标准物质研制中样品均匀性检验与评价所用方法,包括:检测方法,统计判别模式,结果的定性、定量表达和最小取样量确定等,对照国家相关技术规范、国际标准化组织导则和国际地质分析者协会的地质标准物质定值协议,探讨了我国地质标准物质均匀性检验与评价中的难点及现存问题。Abstract: In this paper, we review the current techniques used for homogeneity testing of preparations of geochemical reference materials from China. These techniques are: the determination methods, the statistical discrimination model, the expression/documentations of the qualitative and quantitative results, the determination of the minimum sampling mass, etc. In addition, we discuss the difficulties to meet the rules laid down for the homogeneity testing of geochemical reference materials in China, according to the Chinese national technical specifications, and from the guides of International Organization for Standardization (ISO) and also those rules which are listed in the protocol of the International Geological Association (IAG). Further difficulties, existing in the homogeneity testing of the preparation of geochemical reference materials, are discussed.
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Keywords:
- geochemical /
- reference /
- material
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