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Behavior of the GABIE, 3M 3500, PerkinElmer Tenax TA, and RADIELLO 145 diffusive samplers exposed over a long time to a low concentration of VOCs.

Journal of occupational and environmental hygiene (2006-08-16)
Benoît Oury, Francine Lhuillier, Jean-Claude Protois, Yves Moréle
ABSTRACT

Diffusive sampling is particularly suited to determine time-weighted average volatile organic compound (VOC) concentration in occupational hygiene and environmental air monitoring. The purpose of this study was to measure the sampling rate variation of four different samplers in a special use--the exposure to a low concentration of volatile organic compound (10 to 200 ppb) for a long period (1 to 14 days). PerkinElmer tube-type adsorbent was packed with Tenax TA and RADIELLO cartridge packed with Carbograph 4. Badge-type activated carbon diffusive samplers 3M 3500 and GABIE were exposed to the same controlled atmospheres of benzene as meta-xylene (BTX) during the same exposure times. Performance samplers were observed for variability of uptake rates according to concentration levels, exposure duration, back diffusion, and competition phenomena at the adsorption sites. Particular benzene behavior has been noted for the thermally desorbable tube-type diffusive sampler: the measured sampling rates decrease with time following an exponential profile. With badge-type active charcoal diffusive samplers, the uptake rates were found to be highly stable and unaffected by time exposure. Overall, in the region of a few tens of ppb, for long-time exposure and for the lightest compounds, 3M 3500 and GABIE diffusive samplers seem the most appropriate diffusive sampling technique in terms of performance and facility in use.

MATERIALS
Product Number
Brand
Product Description

radiello Cartridge Adsorbents, for sampling Ammonia (NH3), matrix microporous PE impregnated with phosphoric acid, pk of 20
radiello Cartridge Adsorbents, for sampling Anaesthetic Gases/Vapors, matrix SS net with mix of mol sieve and activated charcoal (30-50 mesh), pk of 20
radiello Cartridge Adsorbents, for sampling BTEX and VOCs (thermal desorption), matrix SS net (3 x 8 μm, 4.8 mm diam.), Carbograph, pk of 20
radiello Anesthetic Gases and Vapor Sampler
radiello Triangular Support Plate, pk of 20
radiello Vertical Adapter, threaded for standard use, pk of 20
radiello Barcode Labels, pk of 198
radiello Outdoor Shelter, pk of 10
radiello Replacement Mounting Strips, for use with Radiello Outdoor Shelter, pk of 100
radiello Cartridge Adsorbents, for sampling Aldehydes, matrix SS net with 2,4-DNPH coated FLORISIL®, pk of 20
radiello Cartridge Adsorbents, for sampling BTEX and VOCs (CS2 Desorption), matrix SS net (100 mesh, 5.8 mm diam.), activated with activated charcoal (30-50 mesh), pk of 20
radiello Clips, suspending Radiello triangular support plate, pk of 20
radiello On-Field Thermometer, Includes one standard Radiello vertical adapter (RAD122) for each thermometer, configured for standard use, pk of 3
radiello Diffusive Bodies, white, configured for general use, pk of 20
Supelco
radiello BTEX Calibration Kit (CS2 Desorption)
radiello On-Field Thermometer, Reader, pk of 1
radiello Diffusive Bodies, blue, configured for sampling light sensitive compounds, pk of 20
Supelco
radiello Methylene Blue Calibration Standard for H2S (Hydrogen Sulfide), pkg of 100 mL
radiello Empty Storage Tubes, glass (with stopper), volume 2.8 mL, pk of 100
radiello Diffusive Bodies, yellow, configured for reduced sampling rates, pk of 20
radiello Empty Storage Tubes, polypropylene (with stopper), volume 12 mL, pk of 100
radiello Diffusive Bodies, permeative, configured for anaesthetic gases and vapors, pk of 20
radiello BTEX/VOC Starter Kit, CS2 Desorption
radiello BTEX/VOC Starter Kit, Thermal Desorption
radiello Filtration Kit, pk of 20
Supelco
radiello Aldehyde Calibration Standard, 50 μg/mL each component in acetonitrile, pkg of 10 mL
Supelco
radiello VOC Calibration Kit (Workplace Environment)
Supelco
radiello BTEX Calibration Kit (Thermal Desorption)
radiello 1,3-Butadiene Starter Kit, Thermal Desorption, pkg of 1 kit (2 RAD141 adsorbing cartridges and barcode labels, 1 RAD1202 yellow diffusive body, 1 RAD121 triangular support plate, 1 instruction sheet)
radiello Hydrogen Sulfide Starter Kit