Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1206182 | Journal of Chromatography A | 2009 | 8 Pages |
Abstract
A methodology based on the coupling of a headspace autosampler with a GC and a MS detector operating in SIM mode has been developed for the determination of volatile organic compounds (THMs and BTEX) in soils. The GC device used is equipped with a programmable temperature vaporizer (PTV) packed with Tenax-TA® to introduce the samples (the injection mode used was solvent vent), and a modular accelerated column heater (MACHâ¢) to control column temperature. The proposed measurement procedure reduces the sample pretreatment step to a minimum. Combined use of solvent vent injection mode and mass spectrometry detection allows a highly sensitive method to be proposed, with limits of detection of the order of ng/kg for all the target compounds. Furthermore, the capillary column used allows rapid separations of compounds in less than 4.60 min, affording a very short total analysis cycle time of 9 min.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
José Luis Pérez Pavón, Sara Herrero MartÃn, Carmelo GarcÃa Pinto, Bernardo Moreno Cordero,