摘要
太平洋多金属结核及深海沉积物标准物质，ＧＳＰＮ－２，３和ＧＳＭＳ－２，３，４个样品已研制完成。ＧＳＰＮ－２，３和ＧＳＭＳ－２采自太平洋ＣＣ区，ＧＳＭＳ－３采自中太平洋海盆（ＣＰ区）。原样被加工成－２００目（７４μｍ）的均匀粉未，其均匀性采用高精度的Ｘ射线荧光光谱法检测。样品的特性值采用国内外多实验室协同分析的方式定值，有包括台湾大学在内的１４个国内实验室和１８个国外实验室参加了合作分析。测试组分分别达７９和８１个，定值组分６３个。全组分的百分总和分别为：９９．７％，９９．５％，９９．８％和９９．７％。这４个标准物质已于１９９７年被国家技术监督局批准为国家一级标准物质，序号分别为ＧＢＷ０７２９５，ＧＢＷ０７２９６，ＧＢＷ０７３１５和ＧＢＷ０７３１。
The collaborative study on the geochemical reference materials of two polymetallic nodules(GSPN_2 and GSPN_3) and two marine sediments(GSMS_2 and GSMS_3) has been completed. The raw materials of GSPN_2, GSPN_3, GSMS_2 and GSMS_3 were collected from the Pacific CC(clarion_clipperton) zone and the central_Pacific basin(CP zone) respectively. The selected materials were processed to be homogeneous powder(size<74μm). The homogeneity of prepared samples was tested by X_Ray Fluorescence(XRF) method. For all tested elements of 30 subsamples taken in random from a batch, their measurement precision(Relative Standard Divetion, RSD) is better than 0.6%. 32 laboratories, including 18 abroad laboratories participated in the collaborative analysis of the four samples. 79(in GSPN_2 and GSPN-3) and 81(in GSMS_2 and GSMS-3) constituents were determinated, of which 63 were certified. The sums of the contents of constituents determinated for the four samples are 99.7%, 99.5%, 99.8% and 99.7% respectively. The four reference materials, as Certified Reference Materials(CRMs), had been approved by State Bureau of Technical Suppervision in 1997. The serial numbers are GBW07295, GBW07296, GBW07315 and GBW07316 respectively.
基金
中国大洋协会"八五"综合研究课题
