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). CH16176. pp. 1292-1295.

PDF (Published Version) - Published Version
Restricted to Repository staff only

DOI: 10.1071/CH16176

View at Publisher Website: http://dx.doi.org/10.1071/CH16176

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 (Research - C1)
ISSN:	1445-0038
Keywords:	photochromic compounds, sensors, emerging contaminants, materials engineering, organic semiconductors
Funders:	Australian Research Council (ARC)
Projects and Grants:	ARC DP1095404
Date Deposited:	20 Jul 2016 03:35
FoR Codes:	40 ENGINEERING > 4016 Materials engineering > 401608 Organic semiconductors @ 50% 34 CHEMICAL SCIENCES > 3405 Organic chemistry > 340505 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%
Downloads:	Total: 3
	More Statistics

Actions (Repository Staff Only)

Item Control Page