| Autor: |
Hameed, Safa Majeed, Hussain, Sahar Aqeel, Abdulzahra, Mohammed Alaa |
| Předmět: |
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| Zdroj: |
Methods & Objects of Chemical Analysis / Metody & Obekty Himičeskogo Analiza; 2024, Vol. 19 Issue 2, p111-117, 7p |
| Abstrakt: |
In this article, we present a sensitive and efficient method for the separation and determination of Zinc (II) and Magnesium (II) ions using a combination of liquid ion exchange and cloud point extraction (CPE). The process includes converting these ions into metal ion complexes by using EDTA at pH 10. These complexes are then bound electrostatically with Brilliant Green (BG) to form ion pair association complexes, which are subsequently transferred into a cloud point layer. The study involved optimizing the extraction conditions, including the EDTA concentration, temperature, heating duration, and surfactant volume. The concentration of EDTA for achieving higher extraction efficiency is 1×10-4 M in the presence of 100 μg of Zn(II) and Mg(II) per 10 mL of aqueous solution using 1×10-4 M of BG. The solutions should be heated at 85°C for Zn(II) and 80°C for Mg(II) for 20 minutes. The optimal volume of surfactants is 0.5 mL of Triton X-100 for Zn(II) and 0.6 mL for Mg(II). The study also includes an analysis of the impact of electrolytes and interferences and the spectrophotometric identification of Zn(II) and Mg(II) in various samples. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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