Determination of Sb and Bi in 24 International Geological Reference
Materials by Using Pressurized Acid Digestion-ICP-MS
HU Zhao-chu1,2,GAO Shan1,2,LIU Xiao-ming2,YUAN Hong-lin2,LIU Ye2,DIWU Chun-rong2
1. State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China 2. State Key Laboratory of Continental Dynamics, Northwest University, Xi’an 710069, China
Abstract：The authors studied in detail the memory effect of Bi, Sb, As and Te in ICP-MS. The produced memory effects of these element were in the order of Bi>Sb>Te>As. Bi was seriously adsorbed by the polypropylene sample storing bottle and the sample introduction system in the low nitric acid medium (0.01%-1% HNO3). The washout effect of 0.1% HF was found to be better than those of 6% HNO3 and 0.1% HClO4. Under the given experiment conditions, the instrumental limit of detection was 0.001 and 0.000 1 ng·mL-1 for Sb and Bi, respectively. The authors report the determination of Sb and Bi in 24 international geological reference materials by using pressurized acid digestion-ICP-MS (including AGV-2, BHVO-2, BCR-2, etc.). Most of the results were found to be in reasonable agreement with the reported values in the literature. The authors’ determined values of Sb for GSR-1(granite; 0.30 μg·g-1) and JP-1(peridotite; 0.045 μg·g-1) are obviously higher than those reported values. This is attributed to the efficient pressurized acid digestion, which is generally much more efficient than conventional wet digestions for insoluble minerals.
胡兆初1,2,高山1,2,柳小明2,袁洪林2,刘晔2,第五春荣2 . 密闭高温高压溶样ICP-MS测定24个国际地质标样中的Sb和Bi[J]. 光谱学与光谱分析, 2007, 27(12): 2570-2574.
HU Zhao-chu1,2,GAO Shan1,2,LIU Xiao-ming2,YUAN Hong-lin2,LIU Ye2,DIWU Chun-rong2 . Determination of Sb and Bi in 24 International Geological Reference
Materials by Using Pressurized Acid Digestion-ICP-MS. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(12): 2570-2574.
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