Development of a Moisture Pretreatment Device for the Accurate Quantitation of Water-Soluble Volatile Organic Compounds in Air
In: Chemosensors, Vol 11, Iss 188, p 188 (2023, Jg. 11 (2023), Heft 188, p 188
academicJournal
Zugriff:
In air pollutant monitoring using sensors, moisture can adversely affect the analytical accuracy of volatile organic compounds (VOCs). Therefore, a new moisture pretreatment device (KPASS–Odor) for analyzing VOCs in the air was developed, based on frost and created by a desublimation process inside a cold tube. The performance of KPASS–Odor was compared with conventional devices (i.e., a Nafion TM dryer and a cooler) through the measurements of low water-soluble VOCs (i.e., benzene, toluene, ethyl benzene, p-xylene, and styrene) and relatively high ones (i.e., methyl-ethyl ketone, methyl isobutyl ketone, butyl acetate, and isobutyl alcohol) using gas chromatography (GC) and sensor methods. Regarding the GC method, the recovery rates for KPASS–Odor and the cooler were >95% and >80%, respectively, at a flow rate of 500 mL/min for all compounds. For the Nafion TM dryer, the recovery rates differed between low and high water-soluble compounds, which exhibited the rates ≥88% and ≤86%, respectively. In terms of the sensor method, the VOC recovery rates of KPASS–Odor and the Nafion TM dryer were found to be >90% and <50%, respectively. Therefore, KPASS–Odor was determined to be the most suitable moisture pretreatment device for highly soluble VOCs of concern in this study.
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Development of a Moisture Pretreatment Device for the Accurate Quantitation of Water-Soluble Volatile Organic Compounds in Air
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Autor/in / Beteiligte Person: | Lee, Sang-Woo ; Dinh, Trieu-Vuong ; Park, Shin-Young ; Choi, In-Young ; Kim, In-Young ; Park, Byeong-Gyu ; Baek, Da-Hyun ; Park, Jae-Hyung ; Seo, Ye-Bin ; Kim, Jo-Chun |
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Zeitschrift: | Chemosensors, Vol 11, Iss 188, p 188 (2023, Jg. 11 (2023), Heft 188, p 188 |
Veröffentlichung: | MDPI AG, 2023 |
Medientyp: | academicJournal |
DOI: | 10.3390/chemosensors11030188 |
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