{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,31]],"date-time":"2026-01-31T08:17:02Z","timestamp":1769847422862,"version":"3.49.0"},"reference-count":32,"publisher":"MDPI AG","issue":"15","license":[{"start":{"date-parts":[[2022,7,27]],"date-time":"2022-07-27T00:00:00Z","timestamp":1658880000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Programma Operativo Nazionale (PON)","award":["07\/2019"],"award-info":[{"award-number":["07\/2019"]}]},{"name":"Programma Operativo Nazionale (PON)","award":["G5889"],"award-info":[{"award-number":["G5889"]}]},{"name":"Programma Operativo Nazionale (PON)","award":["2014\/2020-A0375-2020-36651"],"award-info":[{"award-number":["2014\/2020-A0375-2020-36651"]}]},{"name":"Programma Operativo Nazionale (PON)","award":["COMMI 314-337 LEGGE 232\/2016"],"award-info":[{"award-number":["COMMI 314-337 LEGGE 232\/2016"]}]},{"name":"BRIC-INAIL","award":["07\/2019"],"award-info":[{"award-number":["07\/2019"]}]},{"name":"BRIC-INAIL","award":["G5889"],"award-info":[{"award-number":["G5889"]}]},{"name":"BRIC-INAIL","award":["2014\/2020-A0375-2020-36651"],"award-info":[{"award-number":["2014\/2020-A0375-2020-36651"]}]},{"name":"BRIC-INAIL","award":["COMMI 314-337 LEGGE 232\/2016"],"award-info":[{"award-number":["COMMI 314-337 LEGGE 232\/2016"]}]},{"name":"NATO Science for Peace and Security Programme","award":["07\/2019"],"award-info":[{"award-number":["07\/2019"]}]},{"name":"NATO Science for Peace and Security Programme","award":["G5889"],"award-info":[{"award-number":["G5889"]}]},{"name":"NATO Science for Peace and Security Programme","award":["2014\/2020-A0375-2020-36651"],"award-info":[{"award-number":["2014\/2020-A0375-2020-36651"]}]},{"name":"NATO Science for Peace and Security Programme","award":["COMMI 314-337 LEGGE 232\/2016"],"award-info":[{"award-number":["COMMI 314-337 LEGGE 232\/2016"]}]},{"name":"LazioInnova \u201cGruppi di Ricerca 2020\u201d of the POR FESR","award":["07\/2019"],"award-info":[{"award-number":["07\/2019"]}]},{"name":"LazioInnova \u201cGruppi di Ricerca 2020\u201d of the POR FESR","award":["G5889"],"award-info":[{"award-number":["G5889"]}]},{"name":"LazioInnova \u201cGruppi di Ricerca 2020\u201d of the POR FESR","award":["2014\/2020-A0375-2020-36651"],"award-info":[{"award-number":["2014\/2020-A0375-2020-36651"]}]},{"name":"LazioInnova \u201cGruppi di Ricerca 2020\u201d of the POR FESR","award":["COMMI 314-337 LEGGE 232\/2016"],"award-info":[{"award-number":["COMMI 314-337 LEGGE 232\/2016"]}]},{"name":"Department of Science, Roma Tre University","award":["07\/2019"],"award-info":[{"award-number":["07\/2019"]}]},{"name":"Department of Science, Roma Tre University","award":["G5889"],"award-info":[{"award-number":["G5889"]}]},{"name":"Department of Science, Roma Tre University","award":["2014\/2020-A0375-2020-36651"],"award-info":[{"award-number":["2014\/2020-A0375-2020-36651"]}]},{"name":"Department of Science, Roma Tre University","award":["COMMI 314-337 LEGGE 232\/2016"],"award-info":[{"award-number":["COMMI 314-337 LEGGE 232\/2016"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>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.<\/jats:p>","DOI":"10.3390\/s22155624","type":"journal-article","created":{"date-parts":[[2022,7,28]],"date-time":"2022-07-28T03:21:16Z","timestamp":1658978476000},"page":"5624","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["High Sensitivity Monitoring of VOCs in Air through FTIR Spectroscopy Using a Multipass Gas Cell Setup"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7990-5117","authenticated-orcid":false,"given":"Annalisa","family":"D\u2019Arco","sequence":"first","affiliation":[{"name":"National Institute for Nuclear Physics Laboratori Nazionali Frascati (INFN-LNF), Via E. Fermi 54, 00044 Frascati, Italy"},{"name":"Department of Physics, University of Rome \u2018La Sapienza\u2019, P.le A. Moro 2, 00185 Rome, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4399-3869","authenticated-orcid":false,"given":"Tiziana","family":"Mancini","sequence":"additional","affiliation":[{"name":"Department of Physics, University of Rome \u2018La Sapienza\u2019, P.le A. Moro 2, 00185 Rome, Italy"},{"name":"National Institute for Nuclear Physics Section Rome1, P.le A. Moro 2, 00185 Rome, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maria Chiara","family":"Paolozzi","sequence":"additional","affiliation":[{"name":"Department of Science, University Rome Tre, Largo San Leonardo Murialdo 1, 00146 Rome, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Salvatore","family":"Macis","sequence":"additional","affiliation":[{"name":"Department of Physics, University of Rome \u2018La Sapienza\u2019, P.le A. Moro 2, 00185 Rome, Italy"},{"name":"National Institute for Nuclear Physics Section Rome1, P.le A. Moro 2, 00185 Rome, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5470-8659","authenticated-orcid":false,"given":"Lorenzo","family":"Mosesso","sequence":"additional","affiliation":[{"name":"Department of Science, University Rome Tre, Largo San Leonardo Murialdo 1, 00146 Rome, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8138-7547","authenticated-orcid":false,"given":"Augusto","family":"Marcelli","sequence":"additional","affiliation":[{"name":"National Institute for Nuclear Physics Laboratori Nazionali Frascati (INFN-LNF), Via E. Fermi 54, 00044 Frascati, Italy"},{"name":"Rome International Centre for Materials Science Superstipes, Via dei Sabelli 119A, 00185 Rome, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9508-6801","authenticated-orcid":false,"given":"Massimo","family":"Petrarca","sequence":"additional","affiliation":[{"name":"National Institute for Nuclear Physics Section Rome1, P.le A. Moro 2, 00185 Rome, Italy"},{"name":"Department of Basic and Applied Sciences for Engineering (SBAI), University of Rome \u2019La Sapienza\u2019, Via Scarpa 16, 00161 Rome, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Francesco","family":"Radica","sequence":"additional","affiliation":[{"name":"Department of Engineering and Geology, University Gabriele d\u2019Annunzio Chieti-Pescara, Via dei Vestini, Campus Universitario, 66100 Chieti, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8973-6046","authenticated-orcid":false,"given":"Giovanna","family":"Tranfo","sequence":"additional","affiliation":[{"name":"Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, INAIL, Monte Porzio Catone, 00078 Rome, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stefano","family":"Lupi","sequence":"additional","affiliation":[{"name":"Department of Physics, University of Rome \u2018La Sapienza\u2019, P.le A. Moro 2, 00185 Rome, Italy"},{"name":"National Institute for Nuclear Physics Section Rome1, P.le A. Moro 2, 00185 Rome, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6277-961X","authenticated-orcid":false,"given":"Giancarlo","family":"Della Ventura","sequence":"additional","affiliation":[{"name":"Department of Science, University Rome Tre, Largo San Leonardo Murialdo 1, 00146 Rome, Italy"},{"name":"INGV, Via di Vigna Murata 605, 00143 Rome, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,7,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"760","DOI":"10.1126\/science.aaq0524","article-title":"Volatile chemical products emerging as largest petrochemical source of urban organic emissions","volume":"359","author":"McDonald","year":"2018","journal-title":"Science"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"25","DOI":"10.1111\/ina.12173","article-title":"Very volatile organic compounds: An understudied class of indoor air pollutants","volume":"26","author":"Salthammer","year":"2016","journal-title":"Indoor Air."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"2089","DOI":"10.1016\/j.bios.2004.08.034","article-title":"Benzene analysis in workplace air using an FIA-based bacterial biosensor","volume":"20","author":"Lanyon","year":"2005","journal-title":"Biosens. 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