| Title: | "Programmed temperature vaporizer based method for the sensitive determination of trihalomethanes and benzene, toluene, ethylbenzene and xylenes in soils" |
| Author(s): | Pavon JL; Martin SH; Pinto CG; Cordero BM; |
| Address: | "Departamento de Quimica Analitica, Nutricion y Bromatologia, Facultad de Ciencias Quimicas, Universidad de Salamanca, 37008 Salamanca, Spain. jlpp@usal.es" |
| DOI: | 10.1016/j.chroma.2009.06.057 |
| ISSN/ISBN: | 1873-3778 (Electronic) 0021-9673 (Linking) |
| 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 (MACH) 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" |
| Keywords: | Benzene/*analysis Benzene Derivatives/*analysis Equipment Design Gas Chromatography-Mass Spectrometry/instrumentation/methods Sensitivity and Specificity Sodium Chloride/chemistry Soil Pollutants/*analysis Temperature Time Factors Trihalomethanes/*analysi; |
| Notes: | "MedlinePavon, Jose Luis Perez Martin, Sara Herrero Pinto, Carmelo Garcia Cordero, Bernardo Moreno eng Research Support, Non-U.S. Gov't Netherlands 2009/07/07 J Chromatogr A. 2009 Aug 7; 1216(32):6063-70. doi: 10.1016/j.chroma.2009.06.057. Epub 2009 Jun 23" |
