Development of Time-Weighted Average Sampling of Odorous Volatile Organic Compounds in Air with Solid-Phase Microextraction Fiber Housed inside a GC Glass Liner: Proof of Concept

dc.contributor.author Rice, Somchai
dc.contributor.author Maurer, Devin
dc.contributor.author Tursumbayeva, Madina
dc.contributor.author Koziel, Jacek
dc.contributor.author Koziel, Jacek
dc.contributor.author Maurer, Devin
dc.contributor.author Kenessov, Bulat
dc.contributor.author Rice, Somchai
dc.contributor.department Food Science and Human Nutrition
dc.contributor.department Civil, Construction and Environmental Engineering
dc.contributor.department Agricultural and Biosystems Engineering
dc.contributor.department Toxicology
dc.date 2019-02-07T00:24:36.000
dc.date.accessioned 2020-06-29T22:44:19Z
dc.date.available 2020-06-29T22:44:19Z
dc.date.copyright Tue Jan 01 00:00:00 UTC 2019
dc.date.issued 2019-01-23
dc.description.abstract <p>Finding farm-proven, robust sampling technologies for measurement of odorous volatile organic compounds (VOCs) and evaluating the mitigation of nuisance emissions continues to be a challenge. The objective of this research was to develop a new method for quantification of odorous VOCs in air using time-weighted average (TWA) sampling. The main goal was to transform a fragile lab-based technology (i.e., solid-phase microextraction, SPME) into a rugged sampler that can be deployed for longer periods in remote locations. The developed method addresses the need to improve conventional TWA SPME that suffers from the influence of the metallic SPME needle on the sampling process. We eliminated exposure to metallic parts and replaced them with a glass tube to facilitate diffusion from odorous air onto an exposed SPME fiber. A standard gas chromatography (GC) liner recommended for SPME injections was adopted for this purpose. Acetic acid, a common odorous VOC, was selected as a model compound to prove the concept. GC with mass spectrometry (GC–MS) was used for air analysis. An SPME fiber exposed inside a glass liner followed the Fick’s law of diffusion model. There was a linear relationship between extraction time and mass extracted up to 12 h (R2 > 0.99) and the inverse of retraction depth (1/Z) (R2 > 0.99). The amount of VOC adsorbed via the TWA SPME using a GC glass liner to protect the SPME was reproducible. The limit of detection (LOD, signal-to-noise ratio (S/N) = 3) and limit of quantification (LOQ, S/N = 5) were 10 and 18 µg·m−3 (4.3 and 7.2 ppbV), respectively. There was no apparent difference relative to glass liner conditioning, offering a practical simplification for use in the field. The new method related well to field conditions when comparing it to the conventional method based on sorbent tubes. This research shows that an SPME fiber exposed inside a glass liner can be a promising, practical, simple approach for field applications to quantify odorous VOCs.</p>
dc.description.comments <p>This article is published as Tursumbayeva, Madina, Jacek A. Koziel, Devin L. Maurer, Bulat Kenessov, and Somchai Rice. "Development of Time-Weighted Average Sampling of Odorous Volatile Organic Compounds in Air with Solid-Phase Microextraction Fiber Housed inside a GC Glass Liner: Proof of Concept." <em>Molecules</em> 24, no. 3 (2019): 406. doi: <a href="http://dx.doi.org/10.3390/molecules24030406" target="_blank">10.3390/molecules24030406</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_pubs/997/
dc.identifier.articleid 2281
dc.identifier.contextkey 13671231
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/997
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/1820
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_pubs/997/2019_Koziel_DevelopmentTimeWeighted.pdf|||Sat Jan 15 02:39:57 UTC 2022
dc.source.uri 10.3390/molecules24030406
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.disciplines Environmental Monitoring
dc.subject.keywords SPME
dc.subject.keywords retracted SPME
dc.subject.keywords TWA SPME
dc.subject.keywords GC–MS
dc.subject.keywords on-site sampling
dc.subject.keywords air quality
dc.subject.keywords air monitoring
dc.subject.keywords VOCs
dc.subject.keywords odor
dc.subject.keywords environmental analysis
dc.title Development of Time-Weighted Average Sampling of Odorous Volatile Organic Compounds in Air with Solid-Phase Microextraction Fiber Housed inside a GC Glass Liner: Proof of Concept
dc.type article
dc.type.genre article
dspace.entity.type Publication
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