Micelle Mediated Methodology for the Determination of Heavy Metals in Real Samples by Flame Atomic Absorption Spectrometry
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Keywords

2-Amino-5-mercapto-1,3,4-thiadiazole (AMTD); Nickel; Lead; Zinc and Copper ions; Cloud point extraction; Flame Atomic Absorption Spectrometry

How to Cite

Farshid Ahmadi*, Azadeh Khanmohammadi, Shahin Heydari, Mehdi Mirzazadeh Ezatallah Malekpour. (2008). Micelle Mediated Methodology for the Determination of Heavy Metals in Real Samples by Flame Atomic Absorption Spectrometry. Jordan Journal of Chemistry (JJC), 3(1), 77-86. Retrieved from https://jjc.yu.edu.jo/index.php/jjc/article/view/401

Abstract

A simple and sensitive method is described for the pre-concentration by cloud point extraction followed by atomic absorption spectrometric determination of nickel, lead, zinc and copper ions in real samples. At a solution pH of 7.0, 2-amino-5-mercapto-1, 3, 5 -thiadiazole (AMTD) and TritonX-114 were used as hydrophobic ligand and non-ionic surfactant. The adopted concentrations for AMTD, Triton X-114 and HNO3, bath temperature, centrifuge rate and time were optimized. Detection limits (3SDb/m) of 1.4, 1.6, 1.7  and 1.5 ng mL-1 for Ni2+ , Pb2+, Zn2+ and Cu2+ along with enrichment factors of 29 for these ions were achieved. The high efficiency of cloud point extraction to carry out the determination of analytes in complex matrices was demonstrated. The proposed procedure was applied to the analysis of biological, industrial, natural and waste water, soil and blood samples.

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