摘要
本文研究了气动雾化进样低功率微波等离子体炬原子发射光谱法的分析性能,方法对Ag、Al、Ca、Cd、Cu、Fe和Mg的检出限分别为31、17、3.0、6.7、16、5.1和3.1ng/mL,对所研究元素的测定精密度(RSD)在1.7至5.3％之间。另外还研究了易电离元素对测定的影响。
The analytical characteristics of low-powered MPT-AES with a pneumatic nebulization sample introduction system were studied. The detection limits for Ag, Al, Ca, Cd, Cu, Fe and Mg were 31,17, 3.0, 6.7, 16, 5.1 and 3.1 ng/ml, respectively. The RSDs for determination of these elements were shown to be in the range of 1.7 to 5.3 %. The effect of some easily ionized elements on the Mg Ⅱ 279.6nm emission was investigated.
出处
《分析科学学报》
CAS
CSCD
1993年第3期12-17,共6页
Journal of Analytical Science
基金
国家自然科学基金
关键词
微波等离了炬
原子发射光谱
雾化
microwave plasma torch, atomic emission spectrometry, pneumatic nebulization sample introduction
