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Title: A new cloud point microextraction method for preconcentration and determination of copper in water samples
Authors: Khayatian, Gholamreza
Hashemi, Mahdi
Hassanpoor, Shahed
Keywords: Ultrasound-assisted cloud point preconcentration;Copper;Triton X-114
Issue Date: Nov-2015
Publisher: NISCAIR-CSIR, India
Abstract: A simple and practical preconcentration method using ultrasound-assisted cloud point extraction for determination of Cu(II) in various water samples has been developed. 2-mercaptopyrdin-n-oxide as a complexing agent and Triton X-114 as a surfactant are used in proposed method. After phase separation, the surfactant-rich phase is diluted with methanolic nitric acid and determined by flame atomic absorption spectroscopy. The variables parameters affecting the complexation and extraction steps are optimized. Under optimum conditions, the detection limit of 2.2 ng mL-1 is obtained for Cu(II) ions. The method is successfully applied to the determination of Cu(II) in drinking and mineral water samples.
Page(s): 338-343
ISSN: 0975-0991 (Online); 0971-457X (Print)
Appears in Collections:IJCT Vol.22(6) [November 2015]

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