Article,

Design and performance of an atmospheric pressure inlet system for lithium ion attachment mass spectrometry

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Analytical Chemistry, 74 (9): 2053--2057 (May 2002)547XU Times Cited:1 Cited References Count:14.
DOI: Doi 10.1021/Ac011062q

Abstract

We designed a simple and efficient inlet system to act as an interface between samples at atmospheric pressure and the high vacuum inside a mass spectrometer. The newly designed stainless steel orifice leak sample inlet system is simple and rugged and fulfills all the basic requirements. With this inlet system coupled with a lithium ion attachment mass spectrometer, it is possible to detect any chemical species at atmospheric pressure, including radical intermediates, on a real-time basis. For illustrative purposes, the sampling efficiency of the inlet probe coupled with a lithium ion attachment mass spectrometer is discussed for laboratory air and polyethylene pyrolysis.

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