title: A simple gas chromatographic technique to determine trace impurities in gases.
abstract: A new method is described which allows the determination of trace impurities in flowing gases without removing a sample. The technique is based upon gas fractionation by a sudden change of flow through a small orifice or capillary.
authors.affiliation: Department of Chemistry Purdue University Lafayette, Indiana 47906 U.S.A.
authors.forename: D C
authors.initials: DC
authors.lastname: Myers
authors.forename: F
authors.initials: F
authors.lastname: Schmidt-Bleek