Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.talanta.2011.08.026
Title: Electromembrane extraction and HPLC analysis of haloacetic acids and aromatic acetic acids in wastewater
Authors: Alhooshani, K.
Basheer, C.
Kaur, J.
Gjelstad, A.
Rasmussen, K.E.
Pedersen-Bjergaard, S.
Lee, H.K. 
Keywords: Disinfection by-products
Electromembrane extraction
Environnemental analysis
Microextraction
Polar analytes
Issue Date: 30-Oct-2011
Citation: Alhooshani, K., Basheer, C., Kaur, J., Gjelstad, A., Rasmussen, K.E., Pedersen-Bjergaard, S., Lee, H.K. (2011-10-30). Electromembrane extraction and HPLC analysis of haloacetic acids and aromatic acetic acids in wastewater. Talanta 86 (1) : 109-113. ScholarBank@NUS Repository. https://doi.org/10.1016/j.talanta.2011.08.026
Abstract: For the first time, haloacetic acids and aromatic acetic acids were extracted from wastewater samples using electromembrane extraction (EME). A thin layer of toluene immobilized on the walls of a polypropylene membrane envelope served as an artificial supported liquid membrane (SLM). The haloacetic acids (HAAs) (chloroacetic acid, dichloroacetic acid, and trifluoroacetic acid) and aromatic acetic acids (phenylacetic acid and p-hydroxyphenylacetic acid) were extracted through the SLM and into an alkalized aqueous buffer solution. The buffer solution was located inside the membrane envelope. The electrical potential difference sustained over the membrane acted as the driving force for the transport of haloacetic acids into the membrane by electrokinetic migration. After extraction, the extracts were analyzed by high-performance liquid chromatography-ultraviolet detection. The detection limits were between 0.072 and 40.3 ng L -1. The calibration plot linearity was in the range of 5 and 200 μg L -1 while the correlation coefficients for the analytes ranged from 0.9932 to 0.9967. Relative recoveries were in the range of 87-106%. The extraction efficiency was found to be comparable to that of solid-phase extraction. © 2011 Elsevier B.V. All rights reserved.
Source Title: Talanta
URI: http://scholarbank.nus.edu.sg/handle/10635/93711
ISSN: 00399140
DOI: 10.1016/j.talanta.2011.08.026
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