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HERO ID
6933421
Reference Type
Journal Article
Title
Polyvinyl Acetate Film-Based Quartz Crystal Microbalance for the Detection of Benzene, Toluene, and Xylene Vapors in Air
Author(s)
Rianjanu, A; Hasanah, SA; Nugroho, DB; Kusumaatmaja, A; Roto, R; Triyana, K; ,
Year
2019
Is Peer Reviewed?
1
Journal
Chemosensors
EISSN:
2227-9040
Publisher
MDPI
Location
BASEL
Volume
7
Issue
2
Language
English
DOI
10.3390/chemosensors7020020
Web of Science Id
WOS:000474937300004
URL
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85066989732&doi=10.3390%2fchemosensors7020020&partnerID=40&md5=b269daa33b9337d2f7d86a69f301f8b7
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Abstract
Vapors of volatile organic compounds such as benzene, toluene, and xylene (BTX) may cause health concerns. The sensitive detection of these compounds in air remains challenging. In this study, we reported on modification of the Quartz Crystal Microbalance (QCM) sensing chip using polyvinyl acetate (PVAc) film as active coating for the analysis of BTX vapors. The PVAc film was deposited on the QCM sensing chip surface by a spin coating technique. The morphology of the PVAc films was confirmed by scanning electron microscopy (SEM) and atomic force microscopy (AFM). The sensitivities of PVAc based QCM system for benzene, toluene, and xylene analyses were 0.018, 0.041, and 0.081 Hz/ppm, respectively. The high sensitivity of the proposed QCM system for analysis of BTX vapors is believed to be due to the effective interaction between the PVAc film and BTX molecules. The analyte vapor pressure appears to also affect the sensitivity. These data show that the prepared QCM sensor has a low time constant, good reproducibility, and excellent stability. It offers an alternative to the developed methods for detection of BTX and possibly other aromatic hydrocarbons in the air.
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