First quantitative measurements by IR spectroscopy of dioxins and furans by means of broadly tunable quantum cascade lasers

Year: 2013

Authors: Siciliani de Cumis M., D’Amato F., Viciani S., Patrizi B., Foggi P., Galea C.L.

Autors Affiliation: CNR — Istituto Nazionale di Ottica, Largo E Fermi 6, I-50125 Firenze, Italy;
LENS — University of Florence, Via N Carrara 1, I-50019 Sesto Fiorentino (FI), Italy;
Università degli Studi di Perugia, Dipartimento di Chimica, Via Elce di Sotto 8, I-06123 Perugia, Italy

Abstract: We demonstrate the possibility of a quantitative analysis of the concentration of several dioxins and furans, among the most toxic ones, by only using infrared absorption laser spectroscopy. Two broadly tunable quantum cascade lasers, emitting in the mid-infrared, have been used to measure the absorption spectra of dioxins and furans, dissolved in CCl4, in direct absorption mode. The minimum detectable concentrations are inferred by analyzing diluted samples. A comparison between this technique and standard Fourier transform spectroscopy has been carried out and an analysis of future perspectives is reported.

Journal/Review: LASER PHYSICS

Volume: 23 (2)      Pages from: 025603  to: 025603

More Information: The authors gratefully acknowledge the financial support from Regione Toscana, within the frame of POR CReO FESR 2007-2013, Project SIMPAS (Innovative Measurement Systems for the Protection of Environment and Health).
KeyWords: Dioxins and furans; Direct absorption; Fourier transform spectroscopy; Future perspectives; Midinfrared; Minimum detectable concentrations; Quantitative measurement, Aromatic compounds; Laser spectroscopy; Light absorption; Quantum cascade lasers, Organic pollutants
DOI: 10.1088/1054-660X/23/2/025603

Citations: 6
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