2005•Analytical LaboratoryRequires access

Spectrophotometric method for determination of copper with 2,5-di(2-phenol)-1,3,4-thiadiazole

Yuxia Zhang

Abstract

A spectrophotometric method for the determination of copper with 2,5-di(2-phenol)-1,3,4-thiadiazole is described. In a medium of pH 7.0～9.0 copper reacts with this reagent to form a 1∶3 complex in the prescence of OB-2. The molar absorptivity is 4.23×10~4 L·mol~(-1)·cm~(-1) at 470 nm. Beer′s law is obeyed for Cu in the range of 0.4～2.4 μg/mL. Trace amount of copper in environmental water samples has been determined by using the proposed method and the results obtained are satisfactory.

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Key concepts: Chemistry, Molar absorptivity, Copper, Reagent, Phenol, Spectrophotometry, Trace Amounts, Nuclear chemistry