ScholarLens Back to search
2006•Journal of Changchun University of Science and TechnologyRequires access

Spectrophotometric Determination of Trace Amount of Copper in Biological Samples

Qing-Zhou Zhai

Open publisher page 0 citations

Abstract

In an acetic acid-sodium acetate buffer solution of pH 5.3,copper(II) reacts with tribromoarsenazo to form a violet-red complex.The maximum absorption wavelength of the complex locates at 614 nm and the apparent molar absorptivity is 1.16×10~4 L·mol~(-1)·cm~(-1) at this wavelength.The composition of the complex is Cu(II):R = 1∶2.Beer's law is followed in the range of 0.40 μg·mL~(-1)～ 3.60 μg·mL~(-1) for copper.The method was satisfactorily applied to determine the trace amount of copper in the biological samples,including chicken liver,potato and young garlic shoots.

About this research paper

What this paper is about

In an acetic acid-sodium acetate buffer solution of pH 5.3,copper(II) reacts with tribromoarsenazo to form a violet-red complex.The maximum absorption wavelength of the complex locates at 614 nm and the apparent molar absorptivity is 1.16×10~4 L·mol~(-1)·cm~(-1) at this wavelength.The composition of the complex is Cu(II):R = 1∶2.Beer's law is followed in the range of 0.40 μg·mL~(-1)～ 3.60 μg·mL~(-1) for copper.The method was satisfactorily applied to determine the trace amount of copper in the biological samples,including chicken liver,potato and young garlic shoots.

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

In an acetic acid-sodium acetate buffer solution of pH 5.3,copper(II) reacts with tribromoarsenazo to form a violet-red complex.The maximum absorption wavelength of the complex locates at 614 nm and the apparent molar absorptivity is 1.16×10~4 L·mol~(-1)·cm~(-1) at this wavelength.The composition of the complex is Cu(II):R = 1∶2.Beer's law is followed in the range of 0.40 μg·mL~(-1)～ 3.60 μg·mL~(-1) for copper.The method was satisfactorily applied to determine the trace amount of copper in the biological samples,including chicken liver,potato and young garlic shoots.

Key concepts: Molar absorptivity, Copper, Chemistry, Absorption (acoustics), Buffer solution, Acetic acid, Trace Amounts, Spectrophotometry

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Spectrophotometric Determination of Trace Amount of Copper in Biological Samples — Research Paper | ScholarLens