Solid-phase microextraction as short-term sampling technique for BTEX occupational exposure

Details

Serval ID
serval:BIB_CDBA6D32DD31
Type
Inproceedings: an article in a conference proceedings.
Publication sub-type
Abstract (Abstract): shot summary in a article that contain essentials elements presented during a scientific conference, lecture or from a poster.
Collection
Publications
Institution
Title
Solid-phase microextraction as short-term sampling technique for BTEX occupational exposure
Title of the conference
Genes and Diseases, CHUV Research Day, January 29, 2009
Author(s)
Schüpfer Patrick, Huynh Cong Khanh
Publisher
Université de Lausanne, Faculté de biologie et de médecine
Address
Lausanne
Publication state
Published
Issued date
2009
Pages
EHU-18
Language
english
Notes
SAPHIRID:79342
Abstract
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).
Keywords
Benzene , Toluene , Benzene Derivatives , Xylenes , Solid Phase Microextraction , Occupational Exposure
Create date
27/01/2010 12:20
Last modification date
20/08/2019 15:48
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