ScholarLens Back to search
2000•Chinese Journal of Spectroscopy LaboratoryRequires access

Spectrophotometric Determination of Copper with 2-Tetrazolylazo-5-Diethylamino Phenol

Linjun Cai

Open publisher page 0 citations

Abstract

Conditions of colour reaction of the new reagent 2 tetrazolylazo 5 diethylamino phenol with Cu 2+ were studied.Results show that the new colour reagent reacts with Cu 2+ to form a stable red complex(1∶2) in the presence of HAc NaAc buffer at pH5.0.The maximal absorption wavelength and apparent molar absorptivity are 530nm and 3.52×10 4L·mol -1 ·cm -1 respectively.Beer's law is obeyed in the range of 0—1.0mg/L Cu(Ⅱ).The method was applied to the direct determination of copper in aluminium and magnesium alloys with satisfactory results.

About this research paper

What this paper is about

Conditions of colour reaction of the new reagent 2 tetrazolylazo 5 diethylamino phenol with Cu 2+ were studied.Results show that the new colour reagent reacts with Cu 2+ to form a stable red complex(1∶2) in the presence of HAc NaAc buffer at pH5.0.The maximal absorption wavelength and apparent molar absorptivity are 530nm and 3.52×10 4L·mol -1 ·cm -1 respectively.Beer's law is obeyed in the range of 0—1.0mg/L Cu(Ⅱ).The method was applied to the direct determination of copper in aluminium and magnesium alloys with satisfactory results.

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

Conditions of colour reaction of the new reagent 2 tetrazolylazo 5 diethylamino phenol with Cu 2+ were studied.Results show that the new colour reagent reacts with Cu 2+ to form a stable red complex(1∶2) in the presence of HAc NaAc buffer at pH5.0.The maximal absorption wavelength and apparent molar absorptivity are 530nm and 3.52×10 4L·mol -1 ·cm -1 respectively.Beer's law is obeyed in the range of 0—1.0mg/L Cu(Ⅱ).The method was applied to the direct determination of copper in aluminium and magnesium alloys with satisfactory results.

Key concepts: Molar absorptivity, Reagent, Copper, Phenol, Chemistry, Color reaction, Absorption (acoustics), Spectrophotometry

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Spectrophotometric Determination of Copper with 2-Tetrazolylazo-5-Diethylamino Phenol — Research Paper | ScholarLens