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Air sampling with porous solid-phase microextraction fibers

Koziel, J., Jia, M. Y. and Pawliszyn, J.
2000
ANALYTICAL CHEMISTRY 72 (21): 5178-5186

Koziel, J., Jia, M. Y. and Pawliszyn, J., (2000), "Air sampling with porous solid-phase microextraction fibers", ANALYTICAL CHEMISTRY 72 (21): 5178-5186.
Abstract:
A new, rapid air sampling/sample preparation methodology was investigated using adsorptive solid-phase microextraction (SPME) fiber coatings and nonequilibrium conditions for volatile organic compounds (VOCs), This method is the fastest extraction technique for air sampling at typical airborne VOC concentrations. A theoretical model for the extraction was formulated based on the diffusion through the interface between the sampled (bulk) air and the SPME coating Parameters that affect the extraction process including sampling time, air velocity, air temperature, and relative humidity were investigated with the porous (solid) PDMS/DVB and Carboxen/PDMS coatings. Very short sampling times from 5 s to 1 min were used to minimize the effects of competitive adsorption and to calibrate the extraction process in the initial linear extraction region. The predicted amounts of extracted mass compared well with the measured amounts of target VOCs. Findings presented in this study extend the existing fundamental knowledge related to sampling/sample preparation with SPME, thereby enabling the development of new sampling devices for the rapid sampling of air, headspace, water, and soil.

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Author Information and Other Publications Notes
Koziel, J.
  1. Design and validation of portable SPME devices for rapid field air sampling and diffusion based calibration
  2. Fast field sampling/sample preparation and quantification of volatile organic compounds in indoor air by solid-phase microextraction and portable gas chromatography
  3. Sampling and sample-preparation strategies based on solid-phase microextraction for analysis of indoor air  
Jia, M. Y.
  1. Fast field sampling/sample preparation and quantification of volatile organic compounds in indoor air by solid-phase microextraction and portable gas chromatography  
Pawliszyn, J.
Department of Chemistry, University of Waterloo, ON, Canada. janusz@uwaterloo.ca
  1. A laboratory technique for investigation of diffusion and transformation of volatile organic compounds in low permeability media
  2. Analysis of environmental air samples by solid-phase microextraction and gas-chromatography ion-trap mass-spectrometry
  3. Design and validation of portable SPME devices for rapid field air sampling and diffusion based calibration
  4. Evolution of solid-phase microextraction technology
  5. Fast field sampling/sample preparation and quantification of volatile organic compounds in indoor air by solid-phase microextraction and portable gas chromatography
  6. New trends in solid-phase microextraction
  7. Recent advances in solid phase microextraction and membrane extraction with a sorbent interface
  8. Solid phase microextraction  


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