Spectrophotometric Determination of Copper(II) Using Diamine-Dioxime Derivative
Spectrophotometric Determination of Copper(II) Using Diamine-Dioxime Derivative
Chomchai Suksai(Department of Chemistry, Faculty of Science, Burapha University); Khajadpai Thipyapong(Department of Chemistry, Faculty of Science, Burapha University)
24권 12호, 1767~1770쪽
초록
A simple, rapid and sensitive spectrophotometric method is herewith proposed for the determination of copper(II) by using diamine-dioxime ligand, meso-3,6,6,9-tetramethyl-4,8-diazaundecane-2,10-dione dioxime or meso-HexaMethyl Propylene Amine Oxime (meso-HMPAO). This method is based on the formation of a stable 1 : 1 red-pink complex between copper(II) and meso-HMPAO in aqueous solution. Absorption measurements were carried at 497 nm, with a molar absorptivity value of 338 L mol−1 cm−1. Beer’s law was obeyed over the concentration range of 0.5-370 μg mL−1 with a Sandell’s sensitivity value of 0.18 μg cm−2. The proposed method has been successfully applied for determination of copper(II) in foodstuffs and pharmaceutical samples. The results obtained from this method are comparable with those obtained AAS.
Abstract
A simple, rapid and sensitive spectrophotometric method is herewith proposed for the determination of copper(II) by using diamine-dioxime ligand, meso-3,6,6,9-tetramethyl-4,8-diazaundecane-2,10-dione dioxime or meso-HexaMethyl Propylene Amine Oxime (meso-HMPAO). This method is based on the formation of a stable 1 : 1 red-pink complex between copper(II) and meso-HMPAO in aqueous solution. Absorption measurements were carried at 497 nm, with a molar absorptivity value of 338 L mol−1 cm−1. Beer’s law was obeyed over the concentration range of 0.5-370 μg mL−1 with a Sandell’s sensitivity value of 0.18 μg cm−2. The proposed method has been successfully applied for determination of copper(II) in foodstuffs and pharmaceutical samples. The results obtained from this method are comparable with those obtained AAS.
- 발행기관:
- 대한화학회
- 분류:
- 화학