Overview
ABSTRACT
The SPME-Adapter has been developed in order to simplify the punctual sampling of VOC in the air. This interface allows for combining a vacuum sampling of air with a pre-concentration by SPME. The bottle-vac samplers utilized are similar to canisters but are less costly and easier to implement. The air sample is drawn by the opening of a vacuum valve. The SPME fiber is then introduced into the bottle for the pre-concentration of the VOCs. The detection limits are of ?g · m–3 and the reproductibility is of 12%.
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Read the articleAUTHORS
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Valérie DESAUZIERS : Professor - Lecturer at the École des mines d'Alès (Pau site)
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Benoît AUGUIN : Engineer - Manager of Quad Service
INTRODUCTION
The SPME-Adapter has been developed to simplify spot sampling of VOCs in air. This interface combines vacuum air sampling with SPME pre-concentration. The vacuum flasks used are similar to canisters, but are less expensive and easier to set up. Air is removed by opening a vacuum valve. The SPME fiber is then introduced into the flask to pre-concentrate the VOCs. Detection limits reach μg · m –3 , with a reproducibility of 12%.
To simplify grab VOCs sampling in air, the SPME-Adapter was developed. This interface allows combining vacuum sampling in an evacuated vial with SPME pre-concentration. Vials are similar to canisters but cheaper and easier to implement. The vacuum valve of the SPME-Adapter is simply open to let in the air. Then the fiber is introduced to perform in-vial extraction. A 30 min sampling time allows detecting and quantifying μg · m –3 levels with 12 % reproducibility.
air, VOC, vacuum sampling, SPME
air, VOC, vacuum sampling, SPME
Field: VOC air trace sampling
Degree of technology diffusion: Emergence | Growth | Maturity
Technologies involved: solid-phase microextraction (SPME); vacuum sampling; gas chromatography
Areas of application: indoor environments, ambient air
Main French players: École des mines d'Alès, Quad Service
Competitive clusters :
Competence centers: École des mines d'Alès
Manufacturers: Quad Service
Other global players: Entech Instruments
Contact: [email protected] ; http://www.mines-ales.fr
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The SPME-Adapter: a rapid sampling for the analysis of VOC traces in the air
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