SPME SAMPLING OF BTEX BEFORE GC/MS ANALYSIS:EXAMPLES OF OUTDOOR AND INDOOR AIR QUALITY MEASUREMENTS IN PUBLIC AND PRIVATE SITES

摘要

This article presents the results of an exploratory application of the Solid Phase MicroExtraction(SPME)technique to the analysis of BTEX(benzene,toluene,ethylbenzene and xylenes)at the mug/m~3 level in outdoor and indoor air.The salient features of the method validation are reported.As shown by the various examples of field sampling described,SPME technique appears as a method of choice for fast qualitative analysis and quantitative determination of Volatile Organic Compounds(VOC).The small dimensions of the SPME sampling system and the short sampling time let envisage its utilisation for the rapid diagnostic of outdoor and indoor air quality.