J 2000

Determination of Gentiopicroside in Extracts of Centaurium erythreae and Gentiana lutea by Micellar Electrokinetic Capillary Chromatography

GLATZ, Zdeněk, Jiřina POSPÍŠILOVÁ and Pavel MUSIL

Basic information

Original name

Determination of Gentiopicroside in Extracts of Centaurium erythreae and Gentiana lutea by Micellar Electrokinetic Capillary Chromatography

Authors

GLATZ, Zdeněk, Jiřina POSPÍŠILOVÁ and Pavel MUSIL

Edition

J.Liquid Chromatogr. Rel. Technol. New York, Marcel Dekker, 2000, 1082-6076

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 0.844

RIV identification code

RIV/00216224:14310/00:00003302

Organization unit

Faculty of Science

UT WoS

000088408400004

Keywords in English

micellar electrokinetic chromatography; gentiopicroside; gentiana; centaurium
Změněno: 27/2/2001 10:58, prof. RNDr. Zdeněk Glatz, CSc.

Abstract

V originále

Micellar electrokinetic capillary chromatography has been developed as a promising method for the determination of gentiopicroside. The separation conditions have been optimised with respect to the different parameters including SDS concentration, pH and ion strength of the background electrolyte, and temperature of capillary. A buffer consisting of 100 mM SDS in 20 mM sodium dihydrogen phosphate, 20 mM disodium tetraborate pH 8.6 was found to be the most suitable electrolyte for this separation. The applied voltage of 28 kV (positive polarity) and the temperature of capillary 20 oC gave the best separation of secoiridiods. The linear detection range for concentration versus peak area for the assay is from 5 to 500 mg . ml-1 (correlation coefficient 0.9998) with a detection limit of 0.3 mg . ml-1. The inter-day reproducibility of the peak area was 2.5 % and the inter-day reproducibility of the migration time was below 0.16 %. The developed method was successfully used to quantify gentiopicroside in extracts of the overground parts of Centaurium erythreae and the roots of Gentiana lutea, and in the liqueur Becherovka. The results were in good agreement with those determined by HPLC.

Links

GA303/00/D062, research and development project
Name: Biologická dostupnost a mechanismus antioxidačního účinku fenolických kyselin a lignanů
Investor: Czech Science Foundation, Bioavailability and mechanism of antioxidant activity of phenolic acids and lignans