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A coacervative extraction based on single-chain and double-chain cationic surfactants
Citation
Kukusamude, C and Quirino, JP and Srijaranai, S, A coacervative extraction based on single-chain and double-chain cationic surfactants, Journal of Chromatography A, 1472 pp. 10-15. ISSN 0021-9673 (2016) [Refereed Article]
Copyright Statement
Copyright 2016 Elsevier B.V.
DOI: doi:10.1016/j.chroma.2016.10.030
Abstract
A coacervative extraction (CAE) with the common cationic surfactants dodecyltrimethylammonium bromide (DTAB) and didodecyldimethylammonium bromide (DDAB) was firstly developed. Notable characteristics of the CAE was the use of low concentration of salt (0.1 mol L−1 NaBr) at ambient temperature and without the requirement of organic solvent. The CAE was based on phase separation due to the neutralization of the surface charge of the micelle by electrostatic interaction with the predominant common counter ion (bromide). The coacervative phase was subjected to an optimized micellar liquid chromatography with UV (MLC-UV) method without any treatments. The method was applied to the determination of penicillins including amoxicillin, ampicillin, penicillin-G, oxacillin, and cloxacillin in milk samples. Method detection limits (MDLs) from standard were 0.5–2 ng mL−1, and 40–80-fold analyte enrichment were obtained. The CAE-MLC-UV has shown to be of high potential for the analysis of five penicillins in milk with recoveries >90%.
Item Details
Item Type: | Refereed Article |
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Keywords: | analysis |
Research Division: | Chemical Sciences |
Research Group: | Analytical Chemistry |
Research Field: | Separation Science |
Objective Division: | Expanding Knowledge |
Objective Group: | Expanding Knowledge |
Objective Field: | Expanding Knowledge in the Chemical Sciences |
UTAS Author: | Quirino, JP (Associate Professor Lito Quirino) |
ID Code: | 114989 |
Year Published: | 2016 |
Funding Support: | Australian Research Council (FT100100213) |
Web of Science® Times Cited: | 4 |
Deposited By: | Chemistry |
Deposited On: | 2017-03-03 |
Last Modified: | 2018-03-16 |
Downloads: | 0 |
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