期刊
TALANTA
卷 160, 期 -, 页码 680-685出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.talanta.2016.08.001
关键词
Deep eutectic solvent; Green chemistry; Liquid phase microextraction; Emulsification; Chromium; Speciation
资金
- Unit of the Scientific Research Projects of Erciyes University (Kayseri, Turkey) [FBA-2015-5783]
A new type of deep eutectic solvents (DESs) have been prepared and used as extraction solvents for ultrasound assisted-deep eutectic solvent based emulsification liquid phase microextraction method (UA-DES-ELPME) for the determination and speciation of total chromium, chromium(III) and chromium (VI). The chromium concentration in DES rich phase (extraction phase) was determined by using microsample injection flame atomic absorption spectrometer (FAAS). The detection limit (LOD), the quantification limit (LOQ), preconcentration factor and relative standard deviation were found as 5.5 mu g L-1,18.2 mu g L-1, 20 and 6%, respectively. The accuracy of the developed method was evaluated by the analysis of water the certified reference materials (TMDA-53.3 Fortified environmental water and TMDA-54.4 Fortified Lake Water) and addition-recovery tests for water samples. (C) 2016 Elsevier B.V. All rights reserved.
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