2010•Chinese Journal of Spectroscopy LaboratoryRequires access

Kinetic Spectrophotometric Determination of Trace Phenol Based on Inhibitory Reaction of Amaranth

Li Yan

Abstract

In dilute sulfuric acid medium,trace phenol showed strong inhibition catalytic effect onthe oxidation reaction between amaranth and potassium bromate.Based on these phenomenon,a newkinetic spectrophotometric method of determination of trace amounts of phenol was established.Thedetection limit and the linear range of phenol are 2.97×10-10g/mL and 0.0008-0.06μg/mL,respectively.

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Key concepts: Potassium bromate, Amaranth, Phenol, Chemistry, Sulfuric acid, Detection limit, Bromate, Trace Amounts