Trace level analysis of volatile and sem
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Philip S.H. Wong; R.Graham Cooks
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Article
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1995
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Elsevier Science
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English
β 859 KB
An ion trap mass spectrometer, equipped with a membrane/jet separator interface, is used for the direct detection of volatile and semi-volatile organic compounds in aqueous solutions. Aqueous sample is passed through a capillary membrane, the outside surface of which is continuously purged by helium