Determination of rhenium content in molybdenite by ICP-MS after separation of the major matrix by solvent extraction with N-benzoyl-N-phenylhydroxalamine
作者： Jie Li , Li-feng Zhong , Xiang-lin Tu , Xi-rong Liang , Ji-feng Xu
DOI: 10.1016/J.TALANTA.2010.01.043
关键词: Matrix (chemical analysis) 、 Mass spectrometry 、 Isotope dilution 、 Chemistry 、 Inductively coupled plasma mass spectrometry 、 Molybdenite 、 Rhenium 、 Sample preparation 、 Analytical chemistry 、 Extraction (chemistry)
摘要: A simple and rapid analytical method for determining the concentration of rhenium in molybdenite Re-Os dating was developed. The used isotope dilution-inductively coupled plasma-mass spectrometry (ID-ICP-MS) after removal major matrix elements (e.g., Mo, Fe, W) from Re by solvent extraction with N-benzoyl-N-phenylhydroxylamine (BPHA) chloroform solution. effect on efficiency parameters such as pH (HCl concentration), BPHA concentration, time were also assessed. Under optimal experimental conditions, validity separation accessed measuring Re-187/Re-185 values a reference material (JDC). obtained good agreement previously measured standard. proposed applied to replicate JDC seven samples Yuanzhuding large Cu-Mo porphyry deposit. results demonstrate precision accuracy method. advantages (i.e., simplicity, efficiency, short analysis time, low cost) make it suitable routine analysis. (C) 2010 Elsevier B.V. All rights reserved.
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