摘要
为满足多目标区域地球化学调查与评价形态分析的需要,研制了5个不同土壤类型形态成分标准物质,介绍了解决形态成分标准物质研制的关键——稳定性所采取的主要措施,列出了16个元素的水溶态、离子交换态、碳酸盐结合态、腐殖酸结合态、铁锰氧化物结合态、强有机结合态、残渣态及全量的标准值与不确定度,对定值精度进行了相关分析。
Geochemical speciation certified reference materials are mainly used for speciation analysis in regional geochemical survey and evaluation. Five soil samples for different soil types were prepared. This paper deals with the stability of the samples which seems to constitute the key problem in the standard material development and lists the certified values and uncertainties of 16 elements in soluble, exchangeable, carbonate bound, humic acid bound, iron and manganese oxides bound, strong organic matter bound and residual state. Moreover, The precisions of the certified values are also discussed.
出处
《物探与化探》
CAS
CSCD
2008年第5期492-496,508,共6页
Geophysical and Geochemical Exploration
关键词
地球化学调查
土壤成分
标准物质
稳定性
geochemical survey
soil component
certified reference material
stability
