Determination of Total Tannins in Geranium strictipes

Abstract

Abstract:

Objective: To establish a method for the determination of total tannins in Geranium strictipes. Methods: With Gallic acid as reference substance, the UV spectrophotometer was adopted to determine the content of total tannins. Results: With Gallic acid as a standard, Tannins of Geranium strictipes showed good linear relationship in the range of 2.03-12.17 μg/mL（r = 0.999 4）. The average recovery was 99.1%, RSD was 2.32%（n=8）. Conclusion: The method was simple, rapid and accurate, which could be used to measure the content of tannins in Geranium strictipes.

Key words: Geranium strictipes, total tannins, Gallic acid, colorimetric method

CLC Number:

R284

LUO Ting-Ting, LAN Hai, ZHANG Hai-Zhu, XIE Xue-Bao, HU Jian-Yong, ZHOU Ping. Determination of Total Tannins in Geranium strictipes[J]. J4, 2014, 13(2): 12-14.

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Determination of Total Tannins in Geranium strictipes

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