期刊
SEPARATION SCIENCE AND TECHNOLOGY
卷 54, 期 15, 页码 2431-2439出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/01496395.2018.1547317
关键词
Copper; deep eutectic solvent; microextraction; preconcentration; determination; 5-Br-PADAP; olive oil; water
资金
- TUBITAK [2216]
A green and simple deep eutectic solvent-based ultrasound-assisted liquid phase microextraction method has been developed for the preconcentration of copper as 2-(5-bromo-2-pyridylazo)-5-(diethylamino) phenol chelates. The effects of pH, ligand concentration, DES volume, sample volume, and tetrahydrofuran volume were investigated. Analytical performance parameters like limit of detection, limit of quantification, preconcentration factor, and relative standard deviation were determined as 6.6 mu g L-1, 21.8 mu g L-1, 15, and <5%, respectively. Validation of the developed method was checked by the analysis of certificated reference materials. The procedure was successfully applied to determination of copper in olive oil and water samples.
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