2004•Chinese Journal of Spectroscopy LaboratoryRequires access

Microwave Digestion and Spectrophotometric Determination of Platinum

Li Yang

Abstract

In the presence of hydrochloric acid solution,platinum reacts with p-aminobenzylidenerhodanine(ABR) and forms a 2∶1 stable complex with molar absorptivity of 5.98×10 4L·mol -1 ·cm -1 at 525nm.Beer's law is obeyed in the range of 0-50μg/25mL.This method was applied to the determination of platinum in catalyst with good results.

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Key concepts: Molar absorptivity, Platinum, Hydrochloric acid, Microwave digestion, Chemistry, Spectrophotometry, Catalysis, Inorganic chemistry