An analytical method involving solid-phase micro-extraction (SPME) and gas chromatography-mass spectrometry (GC-MS) was applied to analyze biosolids odors. A selective ion monitoring (SIM)-based MS method was developed, using SPME injections of odorant standards under the full-scan mode to select the quantification and confirmation ions for each odorant. The odorants analyzed in this study include: dimethylsulfide, dimethyldisulfide, methyl mercaptan, hydrogen sulfide, carbon disulfide, trimethylamine and dimethylamine. We have used this method to quantify parts-per-billion levels of odorant vapors produced during anaerobic incubation of digested wastewater sludge. Important considerations for expedient and accurate calibration under static and dynamic flow conditions are discussed. The SPME-GC-MS method may give a positive intercept in the calibration curve, especially under static sampling conditions, which sets a practical detection limit for odor analysis.
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Research Article|
August 01 2004
Analysis of sulfur and nitrogen odorants using solid-phase microextraction and GC-MS
M. Turkmen;
M. Turkmen
*Department of Civil and Environmental Engineering. University of Delaware, Newark, DE 19716, USA
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S.K. Dentel;
S.K. Dentel
*Department of Civil and Environmental Engineering. University of Delaware, Newark, DE 19716, USA
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P.C. Chiu;
P.C. Chiu
*Department of Civil and Environmental Engineering. University of Delaware, Newark, DE 19716, USA
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S. Hepner
S. Hepner
**US Filter/Veolia Water, North American Technology Center 1901 West Garden Road, Vineland, NJ 08360, USA
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Water Sci Technol (2004) 50 (4): 115–120.
Citation
M. Turkmen, S.K. Dentel, P.C. Chiu, S. Hepner; Analysis of sulfur and nitrogen odorants using solid-phase microextraction and GC-MS. Water Sci Technol 1 August 2004; 50 (4): 115–120. doi: https://doi.org/10.2166/wst.2004.0236
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