Needle concentrator for gas chromatographic determination of BTEX in aqueous samples
作者： Róbert Kubinec , Victor G Berezkin , Renáta Górová , Gabriela Addová , Helena Mračnová
DOI: 10.1016/J.JCHROMB.2003.09.009
关键词: Detection limit 、 Sorbent 、 Chemistry 、 Gas chromatography 、 Analytical chemistry 、 BTEX 、 Chromatography 、 Ethylbenzene 、 Adsorption 、 Aqueous solution 、 Extraction (chemistry)
摘要: Abstract A simple method of solventless extraction volatile organic compounds (BTEX) from aqueous samples was developed and validated. new arrangement the full volume inside needle capillary adsorption trap (INCAT) device with Porapak Q as a sorbent material wet alumina source desorptive water vapour flow in closed analytical system is presented. The characteristics compared purge-and-trap (PTI) for BTEX are similar; limits detection well quantification lower than 1 μg l−1.
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