原子能科学技术2009，Vol.43Issue(11)：992-996,5.
同位素稀释多接收电感耦合等离子体质谱法测量红酒中的痕量铁
Determination of Trace Iron in Red Wine by Isotope Dilution Mass Spectrometry Using Multiple-Collector Inductively Coupled Plasma Mass Spectrometry
摘要
Abstract
This paper introduces determination of trace iron in red wine certified reference material by isotope dilution mass spectrometry (IDMS) method using a multiple-collector inductively coupled plasma mass spectrometry, equipped with a hexapole collision cell. The measurement procedure of iron isotopic abundance ratios was deeply researched. Reduced polyatomic ion interferences to iron isotopes ion by collision reaction using Ar and H_2 gas, high precise isotopic abundance ratios were achieved. Two relative measurement methods (ICP-MS and ICP-OES) were used to analyze trace iron in red wine. The results are compared with IDMS results, which indicate that they are accordant. The uncertainty analyses include each uncertainty factor in whole experiment and the uncertainty of used certified reference material and it shows that the procedure blank is not neglectable to detect limit and precision of the method. The establishment of IDMS method for analysis of trace iron in red wine supports the certification of certified reference materials.关键词
多接收电感耦合等离子体质谱/同位素稀释质谱法/铁/红酒Key words
multiple-collector inductively coupled plasma mass spectrometry/ isotopic dilution mass spectrometry/ iron/ red wine分类
化学化工引用本文复制引用
周涛,王军,逯海,周原晶,李海峰..同位素稀释多接收电感耦合等离子体质谱法测量红酒中的痕量铁[J].原子能科学技术,2009,43(11):992-996,5.基金项目
国家科技部支撑计划资助项目(2006BAF07B03) （2006BAF07B03）
