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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Rapid Separation and Indentification Method of Tea Catechins

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1992, v.5 no.3, pp.333-338
Lee, Jeong-Hee
Lee, Yong-Moon
Moon, Dong-Cheul
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Abstract

The tea tannins, epigallocatechin, epigallocatechin gallate, were successfully separated by a Sephadex LH-20 column by the acetone based gradient elution. Each fractions was collected by monitoring at 280nm. Purified fractions were directly characterized by fast atom bombardment mass spectrometry. Epigallocatechin and epigallocatechin gallate were identified and shown as low as 70% purity in the reversed phase column. This revised method is more advantageous than known methods in purity and rapidity.

keywords
tannins, catechins, separation, FAB-MS, HPLC


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