氧屏蔽氩微波等离子体炬的背景发射及其中某些元素发射特征的初步研究  

Preliminary Studies on the Background Emission and Emission Properties of Some Elements from OS-Ar-MPT

作　　者：刘淼[1] 杨文军[1] 周建光[1] 金钦汉[1] 

机构地区：[1]吉林大学化学系,长春130023

出　　处：《高等学校化学学报》1999年第12期1863-1867,共5页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金!(批准号:2973516 0);国家"九五"科技攻关项目!(合同号:96-A23-02-01)

摘　　要：氧屏蔽氩微波等离子体炬 (OS- Ar- MPT)是对 Ar- MPT新光源的一个重大改进 .本文主要探讨了屏蔽气氧气流量变化时对该新光源背景发射光谱及某些元素的原子线、离子线发射的影响 .结果表明 ,该光源简单的背景发射十分有利于作原子发射光谱分析 ,同时它对多数元素的原子发射线信背比都有明显的改善 。OS Ar MPT is an excellent improvement to the Ar MPT excitation source. The effect of O 2 flow rate on the background emission and some atomic and ionic lines in the new source is exploited in this paper. The results show that the simplicity of the background emission of the OS Ar MPT is beneficial to the atomic emission spectrometry. Moreover, signal to background ratios of most emission lines of all elements studied have been significantly improved. The prospect of the new source is promising.

关 键 词：氩微波光谱 OS-Ar-MPT 激光光源 背景发射特征 

分 类 号：O657.36[理学—分析化学]