2011•Journal of Neijiang Normal UniversityRequires access

Study on Spectrophotometric Determination of Zinc(II) in Medicaments

Haoying Zhai

Abstract

A new spectrophotometric method for the determination of Zn(II) in medicaments was developed by aid of Zn(II)-SCN-RhB system.The results showed that the maximum absorption wavelength of ion-association complex was at 555 nm.Under the optimum experimental conditions,the relationship between the absorbance at 555 nm and Zn(II) content in 0.080 ~ 0.80 μg·mL-1 conformed to Beer's law and the apparent mole coefficient was 5.5×104 L·mol-1·cm-1.This method can be applied in determine trace zinc content in medicaments with satisfactory results.

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Key concepts: Absorbance, Zinc, Chemistry, Ion-association, Analytical Chemistry (journal), Beer–Lambert law, TRACE (psycholinguistics), Absorption (acoustics)