Artículos de revistas
Design And Validation Of Portable Spme Devices For Rapid Field Air Sampling And Diffusion-based Calibration
Registro en:
Analytical Chemistry. , v. 73, n. 3, p. 481 - 486, 2001.
32700
10.1021/ac000629k
2-s2.0-0035251743
Autor
Augusto F.
Koziel J.
Pawliszyn J.
Institución
Resumen
The use of SPME fibers coated with porous polymer solid phases for quantitative purposes is limited due to effects such as interanalyte displacement and competitive adsorption. For air analysis, these problems can be averted by employing short exposure times to air samples flowing around the fiber. In these conditions, a simple mathematical model allows quantification without the need of calibration curves. This work describes two portable dynamic air sampling (PDAS) devices designed for application of this approach to nonequilibrium SPME sampling and determination of airborne volatile organic compounds (VOCs). The use of a PDAS device resulted in greater adsorbed VOC mass compared to the conventional SPME extraction in static air for qualitative screening of live plant aromas and contaminants in indoor air. For all studied air samples, an increase in the number of detected compounds and sensitivity was also observed. Quantification of aromatic VOCs in indoor air was also carried out using this approach and the PDAS/SPME device. Measured VOC concentrations were in low parts-per-billion by volume range using only 30-s SPME fiber exposure and were comparable to those obtained with a standard NIOSH method 1501. The use of PDAS/SPME devices reduced the total air sampling and analysis time by several Orders of magnitude compared to the NIOSH 1501 method. 73 3 481 486 Dewulf, J., Van Langenhove, H., (1999) J. Chromatogr., A, 843, pp. 163-177 Clausen, P.A., Wolkoff, P., (1997) Atmos. Environ., 31, pp. 715-725 Helmig, D., Vierling, L., (1995) Anal. Chem., 67, pp. 4380-4386 Yang, M.J., Harms, S., Luo, Y.Z., Pawliszyn, J., (1994) Anal. Chem., 66, pp. 1339-1346 Luo, Y.Z., Pawliszyn, J., (2000) Anal. Chem., 72, pp. 1064-1071 Pawliszyn, J., (1995) TrAC, Trends Anal. Chem., 14, pp. 113-122 Chai, M., Pawliszyn, J., (1995) Environ. Sci. Technol., 29, pp. 693-701 Grote, C., Pawliszyn, J., (1997) Anal. Chem., 69, pp. 587-597 Martos, P.A., Pawliszyn, J., (1997) Anal. Chem., 69, pp. 206-215 Eisert, R., Pawliszyn, J., Barinshteyn, G., Chambers, D., (1998) Anal. Commun., 35, pp. 187-190 Mani, V., Properties of Commercial SPME Coatings (1999), pp. 63-67. , Applications of Solid-Phase Microextraction Pawliszyn, J., Ed. RSC.: Cornwall, UK, Chapter 5Gorecki, T., Solid versus Liquid Coatings (1999), pp. 92-108. , Applications of Solid-Phase Microextraction Pawliszyn, J., Ed. RSC.: Comwall, UIK Chapter 7Page, D.B., Lacroix, G., (2000) J. Chromatogr., A, 873, pp. 79-94 Angusto, F., Valente, A.L.P., Tada, E.S., Rivellino, S.R., (2000) J. Chromatogr., A, 873, pp. 117-127 Marsili, R.T., (1999) J. Chromatogr. Sci., 37, pp. 17-26 Górecki, T., Yu, X., Pawliszyn, J., (1999) Analyst, 124, pp. 643-649 Semenov, S., Koziel, J., Pawliszyn, J., (2000) J. Chromatogr., A, 873, pp. 39-51 Koziel, J., Jia, M., Pawliszyn, J., (2000) Anal. Chem., 72, pp. 5178-5186 Fuller, E.N., Schettler, P.D., Giddings, J.C., (1966) Ind. Eng. Chem., 58, pp. 19-27 Pawliszyn, J., (1997) Solid-Phase Microextraction Theory and Practice, pp. 67-69. , Wiley-VCH: New York (1994) Manual of Analytical Methods, 4th ed., 1. , U.S. Department of Health and Human Services: Cincinnati, OH. (Method 1501 ("Hydrocarbons, Aromatic") Müller, L., Field Analysis by SPME (1999), pp. 269-283. , Applications of Solid-Phase Micro-extraction Pawliszyn, J., Ed. RSC.: Cornwall, UK., Chapter 20Koziel, J., Pawliszyn, J., J. Air Waste Manag. Assoc., , in press Martos, P., Pawliszyn, J., (1997) Anal. Chem., 69, pp. 206-215 Tucker, W.A., Nelken, L.H., Diffusion Coefficients in Air and Water (1982), pp. 171-1725. , Handbook of Chemical Property Estimation Methods: Environmental Behaviour of Organic Compounds Lyman, W. J., Reehl, W. F., Rosenblatt, D. H. Eds. McGraw-Hill: New York, Chapter 17Larkin, R.L., Crable, J.V., Catlett, L.R., Seymour, M.J., (1977) Am. Ind. Hyg. Assoc. J., 38, pp. 543-554