2000•Chinese Journal of Spectroscopy LaboratoryRequires access

Spectrophotometric Determination of Aluminum(III) in Tobacco with Kaempferol

Bo Kyung Yang, Zhou Li, Hu Qiu

Abstract

The color reaction of kaempferol with aluminum(Ⅲ) was studied.In the presence of pH 5.6 buffer solution and CPB medium,kaempferol can react with aluminum(Ⅲ) to form a stable 3∶1 complex.The malor absorptivity is 1.63×10 4L·mol -1 ·cm -1 at 425nm.Beer's law is obeyed in the range of 0—20μg/25mL.This method can be applied to the determination of aluminum in tobacco with satisfactory results.

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Key concepts: Kaempferol, Molar absorptivity, Chemistry, Aluminium, Spectrophotometry, Buffer solution, Chromatography, Flavonoid