Application of Ultrasound-assisted Cloud-point Extraction and Spectrophotometry for Preconcentration and Determination of Trace Amounts of Copper(II) in Beverages
- 作者: Nuket Kartal Temel 1, Ramazan Gürkan 1
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隶属关系:
- Department of Chemistry, Faculty of Science, University of Cumhuriyet
- 期: 卷 74, 编号 12 (2019)
- 页面: 1174-1183
- 栏目: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/183346
- DOI: https://doi.org/10.1134/S1061934819120128
- ID: 183346
如何引用文章
详细
A new method for preconcentration of trace Cu(II) in beverages before determination by spectrophotometry is presented. The method is based on the ternary complex formation of Cu(II) with Safranin T in presence of pyrogallol at pH 5.5 followed by its extraction into the micellar phase of Triton X-114. The ternary complex was monitored by spectrophotometry at 532 nm. Variables affecting extraction efficiency were evaluated and optimized. Under the optimal conditions, the detection limit was 0.6 µg/L in the range of 2–300 µg/L with sensitivity enhancement of 55 after preconcentration from 15 mL of the sample, and precision was in the range of 2.5–3.9%. The accuracy was verified by the analysis of two certified samples and recovery studies of the spiked samples. The intra- and inter-day precision varied in the ranges of 3.7–4.6 and 3.9–5.2%, respectively. The method was successfully applied to determination of trace Cu(II) in beverages.
作者简介
Nuket Kartal Temel
Department of Chemistry, Faculty of Science, University of Cumhuriyet
编辑信件的主要联系方式.
Email: nkartal@cumhuriyet.edu.tr
土耳其, Sivas, TR-58140
Ramazan Gürkan
Department of Chemistry, Faculty of Science, University of Cumhuriyet
Email: nkartal@cumhuriyet.edu.tr
土耳其, Sivas, TR-58140
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