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A Study of Determination of Trace Silver by Kinetic Spectrophotometry

Lid Qiangzeng, Shuren Wang

Abstract

A kinetic spectropllotometry for the determiaation of trace silver based on Ag+ as catalyst of the reaction of K4Fe(CN)8 with thiourea has been investigated. A linear response was obtained in the range 0-0.05μg Ag/ml. The detection limit is 0.5ng/ml. The method has been used for the determination of trace silver in geological samples with satisfactory results.

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Available abstract

Key concepts: Thiourea, Detection limit, Linear range, Spectrophotometry, TRACE (psycholinguistics), Kinetic energy, Chemistry, Catalysis