摘要
在地球化学和环境样品分析中,标准物质发挥着越来越重要的作用。尽管通常要求分析者必须提供量值溯源的测量过程的信息;但大多数论著都未给出标准物质的数据。文章强调标准物质在地球化学分析工作中的重要性,同时将地球化学与环境样品分析标准物质数据库GeoReM介绍给中国的地质分析工作者。GeoReM数据库收录了1880个地球化学和环境样品分析标准物质的定值数据、汇编数据、分析数据及其他相关信息,其中包括156个由中国制备的标准物质的数据。GeoReM数据库还给出了所收录标准物质推荐使用的首选值及其不确定度。尽管这些首选值大多都不是按照国际标准化组织的有关规定而确定的,但是它们的置信度高,因而被广泛应用于仪器校准和分析数据的质量监控。文章还指出要将中国研制的、发表在中文期刊上的标准物质也收录到GeoReM数据库中,这对于促进中国的相关研究,增加国际认可度具有重要意义。
In all fields of geochemical and environmental sample analysis, reference materials play an increasingly important role. Although the provider of an analytical result must document the measurement process used to establish traceability links, most publications do not contain data of reference materials. Therefore, the focus of this paper is to clarify the role and use of reference materials and certified reference materials, to discuss the importance of reference materials for geoanalytical work and to present the GeoReM database for reference materials of geological and environmental interests. The GeoReM database contains published analytical data, compiled data and metadata for 1880 geochemical and environmental reference materials including 156 Chinese reference materials, provides geoanalysts with details of those samples of particular relevance to applications. Preferred values and their uncertainties are also provided in this database. Although most of the GeoReM preferred values are not ISO compliant, they have a high level of confidence and are therefore useful for calibration purposes and quality control. The importance of future input of Chinese reference materials published in Chinese scientific journals is pointed out.
出处
《岩矿测试》
CAS
CSCD
北大核心
2009年第4期311-315,共5页
Rock and Mineral Analysis
基金
科技部基础性科技工作专项基金项目资助(2006FY220500)
