微波辅助消解-原子荧光法测定玻璃中的镉砷铅  

Microwave-assisted digestion of glass samples for the determination of cadmium,arsenic and lead by atomic fluorescence spectrometry

作　　者：辛娟娟[1] 贺容利[1] 杨秋菊[1] 吴莉[2] 侯贤灯[1] 

机构地区：[1]四川大学化学学院,四川成都610064 [2]四川大学分析测试中心,四川成都610064

出　　处：《化学研究与应用》2006年第4期442-444,448,共4页Chemical Research and Application

基　　金：四川省科技厅应用基础研究项目(03A06)

摘　　要：Closed-vessel microwave-assisted digestion was utilized for the decomposition of hard-to-dissolve optical glass samples for the determination of the ultra trace amount of cadmium by electrothermal evaporation atomic fluorescence spectrometry（ETV-AFS）and arsenic and lead by hydride generation atomic fluorescence spectrometry（HG-AFS）.The limits of detection were found to be 0.08,0.1 and 0.7ngmL-1for cadmium,arsenic and lead,respectively.Relative standard deviation（RSD）was between 2%-5% which was adequate for trace analysis.The analytical results were in good agreement with those obtained by inductively coupled plasma mass spectroscopy（ICP-MS）for cadmium and inductively coupled plasma atomic emission spectrometry（ICP-AES）for arsenic and lead.Closed-vessel microwave-assisted digestion was utilized for the decomposition of hard-to-dissolve optical glass samples for the determination of the ultra trace amount of cadmium by electrothermal evaporation atomic fluorescence spectrometry（ETV-AFS） and arsenic and lead by hydride generation atomic fluorescence spectrometry（HG-AFS）. The limits of detection were found to be 0. 08,0.1 and 0.7ngmL^-1 for cadmium, arsenic and lead, respectively. Relative standard deviation （RSD） was between 2% -5 % which was adequate for trace analysis. The analytical results were in good agreement with those obtained by inductively coupled plasma mass spectroscopy（ICP-MS） for cadmium and inductively coupled plasma atomic emission spectrometry （ICP-AES）for arsenic and lead.

关 键 词：微波消解 光学玻璃 电热蒸发原子荧光 氢化物原子荧光 镉 砷 铅 

分 类 号：O657.31[理学—分析化学]