A colorimetric approach towards polycyclic aromatic hydrocarbon sensing

Woodland, Walmiria, Motti, Cherie A., Irving, Paul, Van Herwerden, Lynne, and Vamvounis, George (2016) A colorimetric approach towards polycyclic aromatic hydrocarbon sensing. Australian Journal of Chemistry, 69 (11). pp. 1292-1295.

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Abstract

The colorimetric detection of polycyclic aromatic hydrocarbons (PAHs) was achieved using photochromic compounds. This technique exploits the ability of the photochromic compound to reversibly change from a colourless to a coloured compound using ultraviolet light and visible light. In the presence of a PAH, this photoisomerization is inhibited. The degree of inhibition corresponded to the molar absorptivity and excitation wavelength of the PAH, and with a limit of detection in the micromolar range, the current method delivers a highly sensitive and selective technology. In addition, PAH mixtures were successfully identified using this method, providing a potentially fast in-field sensing technology for the identification of likely sources of spilled oil.

Item ID: 44508
Item Type: Article (Refereed Research - C1)
Keywords: photochromic compounds, sensors, emerging contaminants, materials engineering, organic semiconductors
ISSN: 1445-0038
Funders: Australian Research Council (ARC)
Projects and Grants: ARC DP1095404
Date Deposited: 20 Jul 2016 03:35
FoR Codes: 09 ENGINEERING > 0912 Materials Engineering > 091208 Organic Semiconductors @ 50%
03 CHEMICAL SCIENCES > 0305 Organic Chemistry > 030505 Physical Organic Chemistry @ 50%
SEO Codes: 96 ENVIRONMENT > 9611 Physical and Chemical Conditions of Water > 961104 Physical and Chemical Conditions of Water in Marine Environments @ 100%
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