质谱学报2011，Vol.32Issue(5)：301-306,6.
微波消解ICP-MS法测定某肺癌高发区居民饮食中28种元素
Determination of 28 Elements of Diet Samples in High Incidence Area of Lung Cancer by Microwave Digestion-ICP-MS
摘要
Abstract
A method for determining 28 elements of diet samples was developed by using vac-uum freeze-drying microwave digestion-ICP-MS in HNO3-H2O2 solution system. Under the optimized conditions, the double internal standard elements Rh and Re were used to com-pensate for matrix suppression effect and sensitivity drift. 4 kinds of certified reference ma-terials were analyzed by the described method and the measured element values. The analyt-ical results show that the detection limits of the 28 elements are 0. 01-0. 40 μg/L. The re-coveries are 82%-114%. The elements concentrations are accorded with the standard val-ues or the reference values. The relative standard deviations (RSD) are 0. 4%-16. 9%. The contents of 28 elements in 60 diet samples of people in high lung cancer rate area were determined by this method. The data are useful for studying on the relationship between trace elements and lung cancer and giving some rational diet suggestions.关键词
微波消解/电感耦合等离子体质谱(ICP-MS)/肺癌高发区/饮食Key words
microwave digestion/inductively coupled plasma mass spectrometry (ICP-MS)/ high incidence area of lung cancer/diet分类
化学化工引用本文复制引用
张霖琳,魏复盛,吴国平,王秀琴..微波消解ICP-MS法测定某肺癌高发区居民饮食中28种元素[J].质谱学报,2011,32(5):301-306,6.基金项目
中美科技合作国家环境保护部资助项目(2005-2-01) （2005-2-01）
