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Ultrasonic extraction of iron from non-aqueous liquids

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Wain, AJ, Lawrence, NS, Davis, J and Compton, RG (2002) Ultrasonic extraction of iron from non-aqueous liquids. ANALYST, 127 (1). pp. 8-10. [Journal article]

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Abstract

A novel procedure for the extraction of iron from predominately organic solvents has been described. An ultrasonic probe was used to create a microemulsion with a small quantity of nitric acid such that labile iron could be released into the aqueous vesicles and subsequently quantified after phase separation. The analytical and operational viability of using a simple colorimetric assay based on the coordination of aminothiol ligands (principally homocysteine) was evaluated in terms of signal sensitivity, selectivity and stability. The use of homocysteine provided a linear range for iron(III) from 9 muM to 50 muM with a corresponding limit of detection of 2 muM (based on 3s(b)). The effectiveness of the approach was assessed through the recovery of 0.3 ppm iron from a sample of commercial kerosene and the results compared with those obtained through attempting to quantify the iron under passive (ultrasonically silent) conditions.

Item Type:Journal article
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:14366
Deposited By:Professor James Davis
Deposited On:01 Jul 2010 09:26
Last Modified:18 Aug 2011 11:19

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