High Sensitivity Monitoring of VOCs in Air through FTIR Spectroscopy Using a Multipass Gas Cell Setup

被引：14

作者：

D'Arco, Annalisa ^{[1
,2
]}

Mancini, Tiziana ^{[2
,3
]}

Paolozzi, Maria Chiara ^{[4
]}

Macis, Salvatore ^{[2
,3
]}

Mosesso, Lorenzo ^{[4
]}

Marcelli, Augusto ^{[1
,5
]}

Petrarca, Massimo ^{[3
,6
]}

Radica, Francesco ^{[7
]}

Tranfo, Giovanna ^{[8
]}

Lupi, Stefano ^{[2
,3
]}

Della Ventura, Giancarlo ^{[4
,9
]}

机构：

[1] Natl Inst Nucl Phys, Lab Nazl Frascati INFN LNF, Via E Fermi 54, I-00044 Frascati, Italy

[2] Univ Roma La Sapienza, Dept Phys, Ple A Moro 2, I-00185 Rome, Italy

[3] Natl Inst Nucl Phys, Sect Rome1, Ple A Moro 2, I-00185 Rome, Italy

[4] Univ Rome Tre, Dept Sci, Largo San Leonardo Murialdo 1, I-00146 Rome, Italy

[5] Rome Int Ctr Mat Sci Superstipes, Via Sabelli 119A, I-00185 Rome, Italy

[6] Univ Roma La Sapienza, Dept Basic & Appl Sci Engn SBAI, Via Scarpa 16, I-00161 Rome, Italy

[7] Univ Gabriele dAnnunzio Chieti Pescara, Dept Engn & Geol, Via Vestini,Campus Univ, I-66100 Chieti, Italy

[8] INAIL, Dept Occupat & Environm Med, Epidemiol & Hyg, I-00078 Rome, Italy

[9] INGV, Via Vigna Murata 605, I-00143 Rome, Italy

来源：

SENSORS | 2022年 / 22卷 / 15期

关键词：

VOCs; FTIR; sensor; accuracy; ppm(v); styrene; isopropanol; acetone; ethanol; VOLATILE-ORGANIC-COMPOUNDS; SPECTRA; STYRENE; PHASE;

D O I：

10.3390/s22155624

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

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.

引用

页数：12

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