Oil spill source identification using colorimetric detection

Woodland, Walmiria, Lim, Richard, Motti, Cherie, Irving, Paul, Wang, Jun, Payne, Mark, Junk, Peter C., and Vamvounis, George (2019) Oil spill source identification using colorimetric detection. Australian Journal of Chemistry, 72 (11). pp. 874-880.

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The colorimetric detection of polycyclic aromatic hydrocarbons (PAHs) was investigated for the quick and easy identification of likely oil spill offenders. In this new technology, photochromic compounds were used to sense PAHs by varying their photoswitching capacity. To that end, three photochromes were designed and showed varying degrees of photoswitching inhibition depending on PAH analyte, photochrome and excitation wavelength. PAH mixtures that mimic oil spills showed the same varying response and demonstrated the accuracy of this technology. To prove the applicability of this technology, an array was assembled using the three photochromes at three excitation wavelengths and tested against authentic crude oil samples. Not only could these samples be differentiated, weathering of two distinctly different oil samples showed limited variation in response, demonstrating that this may be a viable technique for in situ oil identification.

Item ID: 59822
Item Type: Article (Research - C1)
ISSN: 1445-0038
Copyright Information: Published Version (C) CSIRO. Accepted Version: Open Access in Author's Institutional Repository without embargo.
Funders: Australian Research Council, Australian Maritime Safety Authority (AMSA)
Projects and Grants: ARC DP1095404, ARC LE150100049
Date Deposited: 08 Oct 2019 23:53
FoR Codes: 40 ENGINEERING > 4004 Chemical engineering > 400499 Chemical engineering not elsewhere classified @ 33%
41 ENVIRONMENTAL SCIENCES > 4105 Pollution and contamination > 410599 Pollution and contamination not elsewhere classified @ 34%
40 ENGINEERING > 4016 Materials engineering > 401608 Organic semiconductors @ 33%
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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