Analytical Sciences
Online ISSN : 1348-2246
Print ISSN : 0910-6340
ISSN-L : 0910-6340
Gas Chromatographic Analysis of Atmospheric Sulfur Compounds Using Cryogenic Sampling and A Modified Thermal Desorber
Y.C. CHENJ.G. Lo
Author information
JOURNAL FREE ACCESS

1997 Volume 13 Issue Supplement Pages 199-204

Details
Abstract
A refined cryogenic sampling method and a modification of a commercialized thermal desorber for automatic analysis of atmospheric sulfur compounds with a gas chromatography coupled to the sulfur chemiluminescence detector is reported. Twenty eight reduced sulfur compounds were analyzed on a 30mx0.32mm i.d., 4μm film thickness, Quadrex 007 series (dimethyl silicon phase) capillary column. The problems of retention time shift and peak splitting caused by the water were significantly improved by connecting a 70-cm deactivated column before the analytical column. For one-liter air sample with 80% relative humidity at 30°C, the retention time shift can be diminished to 1% for the compounds with boiling point higher than ethanethiol.
Content from these authors
© The Japan Society for Analytical Chemistry
Previous article Next article
feedback
Top