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Development of an analytical procedure for weathered hydrocarbon contaminated soils within a UK risk-based framework.

Risdon, Graeme C. and Pollard, Simon J. T. and Brassington, Kirsty J. and McEwan, Jamie N. and Paton, Graeme I. and Semple, Kirk T. and Coulon, Frederic (2008) Development of an analytical procedure for weathered hydrocarbon contaminated soils within a UK risk-based framework. Analytical Chemistry, 80 (18). pp. 7090-7096. ISSN 0003-2700

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Abstract

A sequential ultrasonic extraction method for contaminated soils with weathered hydrocarbons is presented. The method covers the determination of total petroleum hydrocarbons between nC(8) and nC(40), and subranges of hydrocarbons including diesel range organic compounds, kerosene range organic compounds, and mineral oil range organic compounds in soils. Further modifications to the carbon banding may be made as requested for risk assessment. These include a series of ranges known as Texas banding (from the Texas Risk Reduction Program) as well as separation of the aliphatic and aromatic fractions. The method can be routinely used for measuring hydrocarbons down to 10 mg kg(-1) in soil. Lower limits can be achieved by employing a suitable solvent concentration step following extraction; however, this would result in increased cycle time. Detection limits may vary for individual carbon ranges calculated on the percentage of the full range they cover. With an extraction efficiency and recovery between >= 95 and 99%, this method can be easily positioned as a good alternative to Soxhlet extraction and shows a good potential for implementation as a standard method potentially providing further insight to the contaminated land sector.

Item Type: Article
Journal or Publication Title: Analytical Chemistry
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 18514
Deposited By: Prof Kirk T. Semple
Deposited On: 24 Oct 2008 18:52
Refereed?: Yes
Published?: Published
Last Modified: 09 Apr 2014 20:22
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/18514

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