Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7612189 | Journal of Chromatography A | 2015 | 6 Pages |
Abstract
A novel method for the analysis of total sulphur-containing impurities in a hydrogen matrix has been developed. This method has a limit of detection (LoD) significantly lower than that maximum amount fraction for sulphur-containing compounds (4 nmol molâ1) specified by the international standard for hydrogen to be used in fuel cell vehicles (ISO 14687-2). To measure the LoD for this method, a novel gas standard containing five different sulphur-containing compounds at low nmol molâ1 amount fractions has been gravimetrically prepared. Stable primary gas standards that are traceable to the SI were used to successfully validate the amount fractions of the sulphur-containing compounds in this gas standards using gas chromatography with flame ionisation detection (GC-FID) and sulphur chemiluminescence detection (GC-SCD).
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Michael L. Downey, Arul Murugan, Sam Bartlett, Andrew S. Brown,