一种新型的ICP-AES用低功率微波热雾化系统  

A Novel Low Microwave Powered Thermospray Nebulizer for Liquid Sample Introdution in Inductively Coupled Plasma Atomic Emission Spectrometry

作　　者：丁兰[1] 金海燕[1] 徐蔚青[1] 梁枫[1] 曹彦波[1] 金钦汉[1] 

机构地区：[1]吉林大学分析测试中心,长春130023

出　　处：《高等学校化学学报》1999年第12期1874-1876,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金!(批准号 :29735160)资助课题

摘　　要：In this paper, a novel low microwave powered thermospray system was developed. In this system the focused microwave oven used in traditional microwave powered thermospray nebulizer was replaced with a TM 010 microwave resonant cavity, the high pressure pump was replaced with a peristaltic pump. This improvement makes the thermospray system more compact and economical. The influence of several experimental variables(concentration of acid, sample uptake rate, carrier flow rate) on the emission intensity of Mg was evaluated. Compared with the pneumatic nebulization, the detection limits for Mg of this system was improved by a factor of 4.In this paper, a novel low microwave powered thermospray system was developed. In this system the focused microwave oven used in traditional microwave powered thermospray nebulizer was replaced with a TM 010 microwave resonant cavity, the high pressure pump was replaced with a peristaltic pump. This improvement makes the thermospray system more compact and economical. The influence of several experimental variables(concentration of acid, sample uptake rate, carrier flow rate) on the emission intensity of Mg was evaluated. Compared with the pneumatic nebulization, the detection limits for Mg of this system was improved by a factor of 4.

关 键 词：热雾化 MWTN 微波源 等离子体 发射光谱 

分 类 号：O657.39[理学—分析化学]