食品与机械2018，Vol.34Issue(2)：62-66,96,6.DOI:10.13652/j.issn.1003-5788.2018.02.014
ICP-MS法测定英德红茶中的45种元素
Determination of 45 elements in Yingde black tea by ICP-MS
摘要
Abstract
The inductively coupled plasma mass spectrometry (ICP-MS)combined with microwave digestion was employed in this study for the determination of forty five elements in Yingde black tea.The results showed that 45 elements had good linearity and correlation coefficients all greater than 0.9 9 9 5.The limits of detection (LODs) were ranged from 0.000 1 to 20.090 0 μg/L.The recovery rates were between 82.58% and 119.19% with the relative standard deviations (RSDs)of 0.20%~7.03%.The RSD of all the elements except Sb was 0.15%~9.14% in precision experiments.The method was vali-dated by standard reference material (GBW10083 ), the determination values of elements other than Cd are all within the standard value range.It showed that the method had the advantages of rapidness,simplicity and accuracy,which met the requirements of sample determination in terms of linearity, detection limit, precision,accuracy and recovery rate.关键词
电感耦合等离子体质谱/微波消解/茶叶/元素Key words
inductively coupled plasma mass spectrometry(ICP-MS)/microwave digestion/tea/element引用本文复制引用
张先彩,张春华,黄晓兰,吴惠勤..ICP-MS法测定英德红茶中的45种元素[J].食品与机械,2018,34(2):62-66,96,6.基金项目
广东省科技计划项目(编号:2015A030401065) （编号:2015A030401065）
