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A coacervative extraction based on single-chain and double-chain cationic surfactants
journal contribution
posted on 2023-05-19, 02:50 authored by Kukusamude, C, Joselito Quirino, Srijaranai, SA 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%.
Funding
Australian Research Council
History
Publication title
Journal of Chromatography AVolume
1472Pagination
10-15ISSN
0021-9673Department/School
School of Natural SciencesPublisher
Elsevier BVPlace of publication
NetherlandsRights statement
Copyright 2016 Elsevier B.V.Repository Status
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