Adirectly Coupled Microwave-Induced Plasma Atomic Emission Liquid Chromatograpy Detector for Nonmetals: Preliminary Characterization with Halides and Oxohalogen Salts
作者:
KevinG. Michlewicz,
JonW. Carnahan,
期刊:
Analytical Letters
(Taylor Available online 1987)
卷期:
Volume 20,
issue 8
页码: 1193-1205
ISSN:0003-2719
年代: 1987
DOI:10.1080/00032718708064602
出版商: Taylor & Francis Group
关键词: liquid chromatography detector;helium plasma;microwave induced plasma;atomic emission spectrometry
数据来源: Taylor
摘要:
A liquid chromatography system is directly coupled to a moderate power helium microwave induced plasma for the selective determination of no metals in aqueous solutions. The detector is a large volume helium microwave-induced plasma operated at 500 watts with a helium support gas flow of 21L/min. A sample set of halides and oxohalgen salts are separated by ion exchange chromatography and introduced into the plasma as mist generated with an ultrasonic nebulizer. Detection limits range from 1.5 to 6 μg. Calibration plots are presented. Selectivity is observed when monitoring the elemental signals of co-eluting peaks.
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