2004•Chinese Journal of Spectroscopy LaboratoryRequires access

Study on Determination Method of Hydrogen Peroxide Slow Release Level and Its Dynamic Change for Tooth Whitening Products

Liu Qin

Abstract

To ensure the safety of tooth whitening products during bleaching process, a kinetic model of hydrogen peroxide releasing was developed and the released amounts of hydrogen peroxide was determined by a colorimetric method. Hydrogen peroxide can reacts with pyridine-2,6-dicarboxylato(V)(PDV)to form a stable orange-red colored chelate complex,oxo-peroxo-pyridine-2,6-dicarboxylato(V)(OPDV) with maximum ausorption at 430nm.The efficiency of the analysis and the model was studied. Some kinds of tooth whitening products were tested.

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Key concepts: Hydrogen peroxide, Tooth whitening, Pyridine, Chemistry, Orange (colour), Peroxide, Methyl orange, Organic chemistry