A Preliminary Study on the Preparation of Four Pacific Ocean Polymetallic Nodule and Sediment Reference Materials: GSPN-2, GSPN-3, GSMS-2 and GSMS-3 |
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| Authors: | Yimin Wang Daihong Luo Yushu Gao Haowei Song Jiaxi Li Weiyue Chen Yunye Teng Shiguang Zhou |
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| Institution: | Institute of Rock and Mineral Analysis, Chinese Academy of Geological Sciences, 26 Baiwanzhuang Street, Beijing 100037, China. e-mail:;Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China;Guangzhou Marine Geological Survey, Guangzhou 510760, China;Institute of Marine Geology, Qingdao 266071, China |
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| Abstract: | The research project for the preparation of two polymetallic nodule (GSPN-2, GSPN-3) and two marine sediment (GSMS-2, GSMS-3) reference materials was completed in 1996. The samples were collected from the Eastern and Central Pacific Ocean and prepared to less than 74 μm fine powder. The homogeneity of the materials was tested by X-ray fluorescence spectrometry. The relative standard deviations (RSD %) of measurements of selected elements in samples taken from thirty bottles selected at random were less than 0.5%. Thirty four laboratories worldwide participated in the collaborative analysis programme. The number of elements or constituents analysed was seventy nine for nodules and eighty one for sediments. Among those, sixty three elements were certified in each sample. The sum of major elements or components is 99.7% for GSPN-2, 99.5% for GSPN-3, 99.8% for GSMS-2 and 99.8% for GSMS-3. |
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| Keywords: | certified reference materials preparation collaborative analysis programme ocean polymetallic nodule marine sediment China |
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