2003•Metallurgical AnalysisRequires access

Spectrophotometric determination of trace amounts of molybdenum with trimethoxyphenylflurone(TMOPF)

Pan Zhen-sheng

Abstract

A spectrophotometric method for the determination of trace amounts of molybdenum with TMOPF was studied It was found that,in 0 16mol/L H 3PO 4 medium,molybdenum formed an orange 1∶1 complex with TMOPF in the presence of OP. The apparent molar absorptivity is 1 3×10 5L·mol -1 ·cm -1 at 525nm Beer’s law was obeyed for molybdenum in the range of 0-20μg/25mL The method has been satisfactorily applied to determine molybdenum* in steels due to its high selectivity

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Key concepts: Molybdenum, Molar absorptivity, Chemistry, Trace Amounts, Selectivity, Spectrophotometry, Analytical Chemistry (journal), Nuclear chemistry