Study of Spectral Character of Alkali Metals Using Microwave Plasma Torch Simultaneous Spectrometer

作     者：FENG Guo-dong WAN Yi HUAN Yan-fu JIANG jie LI Ming CAO Yan-bo YU Ai-min JIN Qin-han 

作者机构：Institute of Miniature Analytical Instrumentation College of Chemistry Jilin University Jilin Province Research Center for Engineering and Technology of Spectral Instruments Changchun 130023 P. R. China 

出 版 物：《Chemical Research in Chinese Universities》 (高等学校化学研究（英文版）)

年 卷 期：2006年第22卷第6期

页      面：703-707页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070302[理学-分析化学] 0703[理学-化学] 070301[理学-无机化学] 

主　　题：Alkali metals Microwave plasma torch Simultaneous spectrometer Matrix effects 

摘      要：A microwave plasma torch （MPT） simultaneous spectrometer was used to study the spectral character and the matrix effect on alkali metal ions in solution. The main parameters were optimized. The microwave forward power was 100 W. The argon flow rate that was used to sustain the Ar-MPT included the flow rate of carrier gas and the flow rate of support gas, which were 0. 8 and 1.0 L/min, respectively. The HC1 concentration in the solution was 0.02 mol/L. The observation height was 9. 0 ram. The detection limits of Li, Na, K, Rb, and Cs were 0. 0003, 0. 0004, 0. 009, 0.07 and 2.4 mg/L, respectively, and the resuhs obtained by the Ar-MPT were compared with those obtained by argon inductively coupled plasma（Ar-ICP） and argon microwave induced plasma（Ar-MIP）. The interference effects of several matrix elements were also studied.