Determination of Trace Elements in Twenty Six Chinese Geochemistry Reference Materials by Inductively Coupled Plasma-Mass Spectrometry |
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Authors: | Qi Liang D Conrad Grégoire |
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Institution: | Institute of Geochemistry, Open Laboratory of Ore Deposit, Chinese Academy of Sciences, Guiyang, 550002 China. e-mail:;Geological Survey of Canada, 601 Booth Street, Ottawa K1A OE8, Canada |
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Abstract: | We report new data for thirty seven elements determined in twenty six Chinese geochemistry reference materials using inductively coupled plasma-mass spectrometry and a reliable and simple dissolution technique. One hundred milligrams of sample were digested with 1 ml of HF and 0.5 ml of HNO3 in PTFE-lined stainless steel bombs heated to 200 °C for 12 hours. Insoluble residues were dissolved using 6 ml of 40% v/v HNO3 heated to 140 C for 3 hours. Analytical calibration was accomplished using aqueous standard solutions. Rhodium was used as an internal standard to correct for matrix effects and instrument drift. Precisions were typically better than 5% RSD. Most of the data presented here agree well with the published certified values. For the elements Zr, Hf and most other trace elements, the measured values were less than 10% in error when compared to certified values. |
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Keywords: | trace elements Chinese reference materials ICP-MS |
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