The Photometric Determination of Chlorophyll in the Tea Leaves

Abstract

The photometric determination of chlorophyll. in the fresh tea leaves and made tea was researched.
A high correlation coefficient between the chlorophyll concentration and the optical density of the acetone extract of tea by a red filter was existed, and a regression line of chlorophyll concentration upon the optical density of the extract was obtained.
By this regression line, the variation of the chlorophyll concentration of the samples during. the tea manufacturing process and the storage: was measured.