Open AccessCharacterization of volatile organic compounds (VOCs) in their liquid-phase by terahertz time-domain spectroscopy
Author(s) -
Annalisa D’Arco,
Marta Di Fabrizio,
Valerio Dolci,
A. Marcelli,
M. Petrarca,
Giancarlo Della Ventura,
S. Lupi
Publication year - 2019
Publication title -
biomedical optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.362
H-Index - 86
ISSN - 2156-7085
DOI - 10.1364/boe.11.000001
Subject(s) - terahertz time domain spectroscopy , terahertz radiation , materials science , benzene , toluene , refractive index , terahertz spectroscopy and technology , spectroscopy , attenuation coefficient , analytical chemistry (journal) , absorption (acoustics) , xylene , characterization (materials science) , styrene , optics , optoelectronics , chemistry , organic chemistry , nanotechnology , physics , quantum mechanics , composite material , polymer , copolymer
In this work the terahertz spectra of benzene, toluene, p-xylene and styrene-four volatile organic compounds (VOCs) of interest in environmental pollution studies-have been measured in their liquid phase at room temperature using terahertz time-domain spectroscopy (THz-TDS). Their frequency-dependent refractive index and absorption coefficient have been extracted and analyzed in the spectral range from 0.2 to 2.5 THz. The optical properties of bi-component VOCs mixtures have also been investigated and described in terms of a linear combination of pure VOCs optical components.