Yilmaz Erkan, Soylak Mustafa
Erciyes University, Faculty of Sciences, Department of Chemistry, Kayseri, 38039 Turkey.
Erciyes University, Faculty of Sciences, Department of Chemistry, Kayseri, 38039 Turkey.
Talanta. 2016 Nov 1;160:680-685. doi: 10.1016/j.talanta.2016.08.001. Epub 2016 Aug 1.
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 5.5µgL(-1), 18.2µgL(-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.
制备了一种新型的深共熔溶剂（DESs），并将其用作超声辅助深共熔溶剂乳化液液微萃取法（UA-DES-ELPME）的萃取溶剂，用于测定总铬、铬（III）和铬（VI）及其形态。采用微量进样火焰原子吸收光谱仪（FAAS）测定富DES相（萃取相）中的铬浓度。检测限（LOD）、定量限（LOQ）、预富集因子和相对标准偏差分别为5.5µgL(-1)、18.2µgL(-1)、20和6%。通过分析有证标准物质（TMDA-53.3强化环境水和TMDA-54.4强化湖水）以及对水样进行加标回收试验，评估了所建立方法的准确性。
