太平洋多金属结核及沉积物标准物质研制 |
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引用本文:王毅民,李家熙,高玉淑,宋浩威,罗代洪,王晓红,陈维岳,滕云业,周世光.1998.太平洋多金属结核及沉积物标准物质研制[J].地球学报,19(3):298-307. |
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基金项目:中国大洋协会“八五”综合研究课题 |
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中文摘要: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。 |
中文关键词:多金属结核 深海沉积物 标准物质 |
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The Collaborative Study on Geochemical Reference Materials of Pacific Polymetallic Nodules and Sediments |
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Abstract: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. |
keywords:reference material polymetallic nodule deep-sea sediment |
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