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《Rock and Mineral Analysis》 2003-02
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Direct Determination of Tellurium by Inductively Coupled Plasma Mass Spectrometry with Ethanol as a Signal Enhancer

HAN Li rong, LI Bing, MA Xin rong (National Research Center of Geoanalysis, Beijing 100037, China)  
A method for the direct determination of Te in geological samples by inductively coupled plasma mass spectrometry using ethanol as signal enhancer is described. Closed digestion method or Na 2 O 2 fusion method was used for soil, sediment and oceanic polymetallic nodule sample decomposition. Te in sample solution is directly determined by ICP MS and the sensitivity of Te can be enhanced by a factor of 2.5 when 4% ethanol is added. The detection limit of Te is 0.02 μg/g and the validity of the method was examined by analyzing several geological reference materials. Most results are found to be in reasonable agreement with certified values with precision of less than 10% RSD( n =3).
【Fund】: 国土资源部地质大调查项目 (2 0 0 2 6 0 1 9)
【CateGory Index】: O657.63
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