Cloud Point Extraction Procedure for Preconcentration of Co2+, Ni2+ and Cu2+ from Water and Biological Samples Using a thiosemicarbazone Derivative as a Complexing Agent
Erfan, E., Mortada, W., El Asmy, H., El-Defrawy, M. (2021). Cloud Point Extraction Procedure for Preconcentration of Co2+, Ni2+ and Cu2+ from Water and Biological Samples Using a thiosemicarbazone Derivative as a Complexing Agent. EKB Journal Management System, 64(7), 3431-3437. doi: 10.21608/ejchem.2021.63390.3360
Eman Erfan; Wael I. Mortada; Hala El Asmy; M.M. El-Defrawy. "Cloud Point Extraction Procedure for Preconcentration of Co2+, Ni2+ and Cu2+ from Water and Biological Samples Using a thiosemicarbazone Derivative as a Complexing Agent". EKB Journal Management System, 64, 7, 2021, 3431-3437. doi: 10.21608/ejchem.2021.63390.3360
Erfan, E., Mortada, W., El Asmy, H., El-Defrawy, M. (2021). 'Cloud Point Extraction Procedure for Preconcentration of Co2+, Ni2+ and Cu2+ from Water and Biological Samples Using a thiosemicarbazone Derivative as a Complexing Agent', EKB Journal Management System, 64(7), pp. 3431-3437. doi: 10.21608/ejchem.2021.63390.3360
Erfan, E., Mortada, W., El Asmy, H., El-Defrawy, M. Cloud Point Extraction Procedure for Preconcentration of Co2+, Ni2+ and Cu2+ from Water and Biological Samples Using a thiosemicarbazone Derivative as a Complexing Agent. EKB Journal Management System, 2021; 64(7): 3431-3437. doi: 10.21608/ejchem.2021.63390.3360

Cloud Point Extraction Procedure for Preconcentration of Co2+, Ni2+ and Cu2+ from Water and Biological Samples Using a thiosemicarbazone Derivative as a Complexing Agent

Egyptian Journal of Chemistry
Article 21, Volume 64, Issue 7, July 2021, Page 3431-3437  XML PDF (522.81 K)
Document Type: Original Article
DOI: 10.21608/ejchem.2021.63390.3360
View on SCiNiTO View on SCiNiTO
Authors
Eman Erfan1; Wael I. Mortada email orcid 2; Hala El Asmy3; M.M. El-Defrawy4
1Chemistry Department, Faculty of Science, Mansoura University, Mansoura
2Urology and Nephrology center, Mansoura University Urology and Nephrology center, Mansoura University
3Chemistry department, Faculty of Science, Mansoura University
4Chemistry Department, Faculty of Science, Mansoura University, Egypt
Abstract
An accurate and simple preconcentration procedure was presented for cloud point extraction of Co2+, Ni2+ and Cu2+ from water, blood and urine samples. The procedure based on complexation of the metal ions with (E)-2-(2,4-dihydroxybenzylidene)-N-phenylhydrazine-1-carbothioamide (DHBPHC) and subsequent extraction into a surfactant-rich phase of Triton X-114. The optimized procedure (50 mL solution; pH 6; 1 × 10–4 mol L-1 of DHBPHC; 0.08% (v/v) Triton X-114) exhibits linear range up to 500 µg L-1 and limit of detection of 0.34, 0.94 and 0.83 µg L-1 for Co2+, Ni2+ and Cu2+, respectively. Most potentially interferants did not impact the extraction process. The procedure was applied for preconcentration and determination of Co2+, Ni2+ and Cu2+ in water, blood and urine by flame atomic absorption spectrometry.
Keywords
Cloud point extraction; metal ions; thiosemicarbazone; flame atomic absorption spectrometry
Statistics
Article View: 512
PDF Download: 416