Document Type

Journal Article

Department/Unit

School of Chinese Medicine

Title

Simultaneous determination of eight anthraquinones in semen cassiae by HPLC-DAD

Language

English

Abstract

Introduction Semen Cassiae (SC), a traditional Chinese herbal medicine for the treatment of various diseases, is known to contain active anthraquinone ingredients. However, since the content of some anthraquinones is too low, previous analytical methods only allow the quantitation of a few anthraquinones or a hydrolysis step has to be included in the sample preparation. A rapid and accurate method to examine the content of as many anthraquinones as possible in SC would be desirable. Objective To develop a rapid, sensitive and accurate high-performance liquid chromatography-diode array detection (HPLC- DAD) method to simultaneously quantify eight major anthraquinones (obtusifolin-2-glucoside, aurantio-obtusin, aloe- emodin, rhein, obtusifolin, emodin, chrysophanol and physcion) in SC. Methodology The separation of anthraquinones was achieved on a C 18-column with a gradient elution using acetonitrile and 0.1% phosphoric acid. The detection wavelength was 278 nm and the analysis finished within 25 min. Results The limits of detection of these compounds ranged from 0.07 to 0.15 μg/mL while the limits of quantitation ranged from 0.24 to 0.51 μg/mL. All calibration curves showed good linearities (r 2 > 0.999) within the test ranges. This validated method was successfully used to analyse 22 batches of SC samples collected from various geographical locations. Conclusion The method was validated to be simple, rapid, accurate and reliable to simultaneously determine eight major anthraquinones in SC. Meanwhile, a more specific anthraquinone, obtusifolin, was proposed to serve as a marker for SC, replacing chrysophanol. Copyright © 2011 John Wiley & Sons, Ltd.

Keywords

anthraquinone, Cassia obtusifolia L., HPLC-DAD, obtusifolin, Semen Cassiae

Publication Date

2012

Source Publication Title

Phytochemical Analysis

Volume

23

Issue

2

Start Page

110

End Page

116

Publisher

Wiley

DOI

10.1002/pca.1331

Link to Publisher's Edition

http://dx.doi.org/10.1002/pca.1331

ISSN (print)

09580344

ISSN (electronic)

10991565

This document is currently not available here.

Share

COinS