Comparative study of the adsorption performance of a multi-sorbent bed (Carbotrap, Carbopack X, Carboxen 569) and a Tenax TA adsorbent tube for the analysis of volatile organic compounds (VOCs)
Fitxers
Títol de la revista
ISSN de la revista
Títol del volum
Col·laborador
Tribunal avaluador
Realitzat a/amb
Tipus de document
Data publicació
Editor
Condicions d'accés
item.page.rightslicense
Publicacions relacionades
Datasets relacionats
Projecte CCD
Abstract
A comparison between two types of adsorbent tubes, the commonly used Tenax TA and a multi-sorbent bed (Carbotrap, Carbopack X, Carboxen 569) tube developed in our laboratory, has been done to evaluate their usefulness in the analysis of VOCs in ambient air. Duplicate indoor and outdoor samples of Tenax TA and multi-sorbent tubes of 10, 20, 40, 60 and 90 litres were taken in Barcelona city (Spain) on July and October of 2009. Breakthrough values (defined as %VOCs found in the back tube) were determined for all sampling volumes connecting two sampling tubes in series. The analysis was performed by automatic thermal desorption (ATD) coupled with capillary gas chromatography (GC)/mass spectrometry detector (MSD). Significant differences between the concentrations obtained form multi-sorbent bed and Tenax TA tubes are observed for the very volatile compounds (56ºC