Improved Cd determination in glasses by laser ablation inductively coupled plasma mass spectrometry using nitrogen as a matrix modifier  

作　　者：Qian Ni Zhao Chu Hu Zheng Yu Bao Ya Feng Zhang 

机构地区：[1]State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China [2]Laboratory of No. 9 Gold Detachment, Chinese People's Arming Police Unit, Hainan 570216, China

出　　处：《Chinese Chemical Letters》2009年第1期92-95,共4页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.40703006,90714010,40521001 and 40673019);the Ministry of Education of China(No.B07039,306021 and GPMR2008);ChinaPostdoctoral Science Foundation.

摘　　要：The addition of 5-10 mL min^-1 nitrogen to the central channel of plasma in Laser ablation Inductively Coupled Plasma Mass Spectrometry （LA-ICP-MS） increases the sensitivities of Cd by a factor of 3 and decreases oxide interferences by one order of magnitude, which allows the direct analysis of trace levels of Cd in glass samples. This simple method shows a great potential for the direct determination of Cd in various kinds of samples.The addition of 5-10 mL min^-1 nitrogen to the central channel of plasma in Laser ablation Inductively Coupled Plasma Mass Spectrometry （LA-ICP-MS） increases the sensitivities of Cd by a factor of 3 and decreases oxide interferences by one order of magnitude, which allows the direct analysis of trace levels of Cd in glass samples. This simple method shows a great potential for the direct determination of Cd in various kinds of samples.

关 键 词：LA-ICP-MS CD MPI-DING glass 

分 类 号：O657.63[理学—分析化学] O536[理学—化学]