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一种新型的ICP-AES用低功率微波热雾化系统 被引量:3

A Novel Low Microwave Powered Thermospray Nebulizer for Liquid Sample Introdution in Inductively Coupled Plasma Atomic Emission Spectrometry
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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.
出处 《高等学校化学学报》 SCIE EI CAS CSCD 北大核心 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
关键词 热雾化 MWTN 微波源 等离子体 发射光谱 Thermospray, ICP-AES, Microwave
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