Preparation of Five China Sea and Continental Shelf Sediment Reference Materials with Ultra Fine Particle Size
- VernacularTitle:中国海大陆架沉积物超细标准物质系列研制
- Author:
Yimin WANG
;
Yushu GAO
;
Xiaohong WANG
;
Yongyang HUANG
;
Zhenyu WANG
;
Xuefa SHI
- Publication Type:Journal Article
- Keywords:
China Sea continental shelf;
marine sediment;
reference materials;
chemical constitutes;
ultra-fine particle size sample
- From:
Chinese Journal of Analytical Chemistry
2009;37(11):1700-1705
- CountryChina
- Language:Chinese
-
Abstract:
The preparation and certification of five China Sea and continental shelf sediment reference materials MSCS-1- 5 are reported. The raw samples were collected separately from the East China Sea and the South China Sea. First,they were ground by a ball mill to a homogenous powder of less than 74μm,then these samples was further processed by an ultra-fine processing technique,a jet mill,to form an ultra-fine powder. The particle size distribution of the samples was determined with a laser particle-analyser,their average particle size is < 4μm. The homogeneity was tested by high-precision WD-XRF and the minimum sampling mass is 5 mg,which was confirmed by XRF,ICP-AES and ICP-MS. Twelve laboratories participated in the cooperative study and 60 constituents were determined. 50 and 51 components were certified as certified values and 1 and 2 components as reference values respectively for MSCS-1 and MSCS-2,52 constituents were certified as certified values for MSCS-3,4 and 5. The sum of the major and minor components in the five reference materials MSCS-1 -5 is 99.9% ,99.6% ,100.4% ,100.1% and 99.7% ,respectively.
