Solid-phase microextraction as short-term sampling technique for BTEX occupational exposure
Détails
ID Serval
serval:BIB_CDBA6D32DD31
Type
Actes de conférence (partie): contribution originale à la littérature scientifique, publiée à l'occasion de conférences scientifiques, dans un ouvrage de compte-rendu (proceedings), ou dans l'édition spéciale d'un journal reconnu (conference proceedings).
Sous-type
Abstract (résumé de présentation): article court qui reprend les éléments essentiels présentés à l'occasion d'une conférence scientifique dans un poster ou lors d'une intervention orale.
Collection
Publications
Institution
Titre
Solid-phase microextraction as short-term sampling technique for BTEX occupational exposure
Titre de la conférence
Genes and Diseases, CHUV Research Day, January 29, 2009
Editeur
Université de Lausanne, Faculté de biologie et de médecine
Adresse
Lausanne
Statut éditorial
Publié
Date de publication
2009
Pages
EHU-18
Langue
anglais
Notes
SAPHIRID:79342
Résumé
Solid phase microextraction (SPME) has been widely used for many years in various applications, such as environmental and water samples, food and fragrance analysis, or biological fluids. The aim of this study was to suggest the SPME method as an alternative to conventional techniques used in the evaluation of worker exposure to benzene, toluene, ethylbenzene, and xylene (BTEX). Polymethylsiloxane-carboxen (PDMS/CAR) showed as the most effective stationary phase material for sorbing BTEX among other materials (polyacrylate, PDMS, PDMS/divinylbenzene, Carbowax/divinylbenzene). Various experimental conditions were studied to apply SPME to BTEX quantitation in field situations. The uptake rate of the selected fiber (75 μm PDMS/CAR) was determined for each analyte at various concentrations, relative humidities, and airflow velocities from static (calm air) to dynamic (>200 cm/s) conditions. The SPME method also was compared with the National Institute of Occupational Safety and Health method 1501. Unlike the latter, the SPME approach fulfills the new requirement for the threshold limit value-short term exposure limit (TLV-STEL) of 2.5 ppm for benzene (8 mg/m3).
Mots-clé
Benzene , Toluene , Benzene Derivatives , Xylenes , Solid Phase Microextraction , Occupational Exposure
Site de l'éditeur
Création de la notice
27/01/2010 13:20
Dernière modification de la notice
20/08/2019 16:48