环境监测管理与技术
環境鑑測管理與技術
배경감측관리여기술
THE ADMINISTRATION AND TECHNIQUE OF ENVIRONMENTAL MONITORING
2014年
5期
40-42
,共3页
何伟彪%李少艾%叶毓婧
何偉彪%李少艾%葉毓婧
하위표%리소애%협육청
硒%电感耦合等离子体质谱法%碰撞池技术%基体干扰%水质
硒%電感耦閤等離子體質譜法%踫撞池技術%基體榦擾%水質
서%전감우합등리자체질보법%팽당지기술%기체간우%수질
Se%ICP-MS%KED technique%Matrix interference%Water quality
通过测定深圳某河流水样中的主要成分，确定ICP-MS碰撞模式测定Se的主要基体干扰，并对碰撞气流量进行条件优化和水样基体干扰消除试验，确定当氦气流量为3．0 L/min时，测定77 Se的干扰能基本被消除。该方法测定实际水样的结果与原子荧光法的测定值无显著差异。
通過測定深圳某河流水樣中的主要成分，確定ICP-MS踫撞模式測定Se的主要基體榦擾，併對踫撞氣流量進行條件優化和水樣基體榦擾消除試驗，確定噹氦氣流量為3．0 L/min時，測定77 Se的榦擾能基本被消除。該方法測定實際水樣的結果與原子熒光法的測定值無顯著差異。
통과측정심수모하류수양중적주요성분，학정ICP-MS팽당모식측정Se적주요기체간우，병대팽당기류량진행조건우화화수양기체간우소제시험，학정당양기류량위3．0 L/min시，측정77 Se적간우능기본피소제。해방법측정실제수양적결과여원자형광법적측정치무현저차이。
Components and content of the complex river samples in Shenzhen were studied.Major interfer-ence on determination of Se with ICP-MS was confirmed.To eliminate the interference, ICP-MS KED mode equipped with He as collision gas was used to examinate 77 Se and 82 Se.The flow rate of He was optimized, and a flow of 3.0 L/min of He was found as a suitable rate for fully eliminating interference on 77 Se.But interference on 82 Se can only be remove partly.Analysis results of Se in the river sample ( 77 Se was selected) matched up the results determined by atomic flourescence spectrometry.
