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Sensors (Basel)

Title:		High Sensitivity Monitoring of VOCs in Air through FTIR Spectroscopy Using a Multipass Gas Cell Setup
Author(s):		D'Arco A; Mancini T; Paolozzi MC; Macis S; Mosesso L; Marcelli A; Petrarca M; Radica F; Tranfo G; Lupi S; Della Ventura G;
Address:		"National Institute for Nuclear Physics Laboratori Nazionali Frascati (INFN-LNF), Via E. Fermi 54, 00044 Frascati, Italy. Department of Physics, University of Rome 'La Sapienza', P.le A. Moro 2, 00185 Rome, Italy. National Institute for Nuclear Physics Section Rome1, P.le A. Moro 2, 00185 Rome, Italy. Department of Science, University Rome Tre, Largo San Leonardo Murialdo 1, 00146 Rome, Italy. Rome International Centre for Materials Science Superstipes, Via dei Sabelli 119A, 00185 Rome, Italy. Department of Basic and Applied Sciences for Engineering (SBAI), University of Rome 'La Sapienza', Via Scarpa 16, 00161 Rome, Italy. Department of Engineering and Geology, University Gabriele d'Annunzio Chieti-Pescara, Via dei Vestini, Campus Universitario, 66100 Chieti, Italy. Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, INAIL, Monte Porzio Catone, 00078 Rome, Italy. INGV, Via di Vigna Murata 605, 00143 Rome, Italy"
Journal Title:		Sensors (Basel)
Year:		2022
Volume:		20220727
Issue:		15
Page Number:		-
DOI:		10.3390/s22155624
ISSN/ISBN:		1424-8220 (Electronic) 1424-8220 (Linking)
Abstract:		"Human exposure to Volatile Organic Compounds (VOCs) and their presence in indoor and working environments is recognized as a serious health risk, causing impairments of varying severities. Different detecting systems able to monitor VOCs are available in the market; however, they have significant limitations for both sensitivity and chemical discrimination capability. During the last years we studied systematically the use of Fourier Transform Infrared (FTIR) spectroscopy as an alternative, powerful tool for quantifying VOCs in air. We calibrated the method for a set of compounds (styrene, acetone, ethanol and isopropanol) by using both laboratory and portable infrared spectrometers. The aim was to develop a new, and highly sensitive sensor system for VOCs monitoring. In this paper, we improved the setup performance, testing the feasibility of using a multipass cell with the aim of extending the sensitivity of our system down to the part per million (ppm) level. Considering that multipass cells are now also available for portable instruments, this study opens the road for the design of new high-resolution devices for environmental monitoring"
Keywords:		"*Air Pollutants/analysis *Air Pollution, Indoor/analysis Environmental Monitoring/methods Humans Spectroscopy, Fourier Transform Infrared *Volatile Organic Compounds/analysis Ftir VOCs accuracy acetone ethanol isopropanol ppmv sensor styrene;"
Notes:		"MedlineD'Arco, Annalisa Mancini, Tiziana Paolozzi, Maria Chiara Macis, Salvatore Mosesso, Lorenzo Marcelli, Augusto Petrarca, Massimo Radica, Francesco Tranfo, Giovanna Lupi, Stefano Della Ventura, Giancarlo eng Switzerland 2022/08/13 Sensors (Basel). 2022 Jul 27; 22(15):5624. doi: 10.3390/s22155624"