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2004•Analytical LaboratoryRequires access

Determination of leulogen by single sweep oscillopolarography

Yongfeng Wei

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Abstract

A sensitive absorptive wave of leucogen-Cu~(2+)-ethylenediamine system was obtained by using single sweep oscillopolarography. It was based on the reaction of Cu~(2+)-ethylenediamine with hydrolysis product of leucogen in 0.1 mol/L NaOH. The peak potential was at -0.37 V(vs.SCE). The linear relationship between the concentration and the peak height was in the range of 4.0×10~(-7)～6.0×10~(-6) mol/L with the RSD of 1.0% and the detection limit of 1.0×10~(-7) mol/L. The recovery was 97.9%～103%. The method was applied to the determination of leucogen in tables with satisfaction results.

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What this paper is about

A sensitive absorptive wave of leucogen-Cu~(2+)-ethylenediamine system was obtained by using single sweep oscillopolarography. It was based on the reaction of Cu~(2+)-ethylenediamine with hydrolysis product of leucogen in 0.1 mol/L NaOH. The peak potential was at -0.37 V(vs.SCE). The linear relationship between the concentration and the peak height was in the range of 4.0×10~(-7)～6.0×10~(-6) mol/L with the RSD of 1.0% and the detection limit of 1.0×10~(-7) mol/L. The recovery was 97.9%～103%. The method was applied to the determination of leucogen in tables with satisfaction results.

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Available abstract

A sensitive absorptive wave of leucogen-Cu~(2+)-ethylenediamine system was obtained by using single sweep oscillopolarography. It was based on the reaction of Cu~(2+)-ethylenediamine with hydrolysis product of leucogen in 0.1 mol/L NaOH. The peak potential was at -0.37 V(vs.SCE). The linear relationship between the concentration and the peak height was in the range of 4.0×10~(-7)～6.0×10~(-6) mol/L with the RSD of 1.0% and the detection limit of 1.0×10~(-7) mol/L. The recovery was 97.9%～103%. The method was applied to the determination of leucogen in tables with satisfaction results.

Key concepts: Chemistry, Ethylenediamine, Detection limit, Hydrolysis, Linear range, Analytical Chemistry (journal), Inorganic chemistry, Chromatography

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