title: Design and performance of an atmospheric pressure inlet system for lithium ion attachment mass spectrometry.
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.
authors.affiliation: National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan.
authors.forename: P Christopher
authors.initials: PC
authors.lastname: Selvin
authors.forename: Keiichiro
authors.initials: K
authors.lastname: Iwase
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Fujii