English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Open

Presents the pdf analysis as premium feature

PDF Analysis

Insights

Presents the summarisation as premium feature

Summarisation

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

A mixture of saponin compounds (saikosaponin  c, a , and  d ) in the 70% ethanol extract of a powdered sample of Bupleuri radix are analyzed by an Inertsil ODS-3 C 18  column at a flow rate of 1.0 mL/min and detection wavelength of 203 nm. Well resolved chromatograms of saikosaponin  c, a , and  d  are obtained with a gradient elution of acetonitrile-water from 40:60 (v/v) to 50:50 (v/v). The total time required for a single analysis is approximately 20 min. Calibration curves for saikosaponin  c, a , and  d  are linear up to 2.5 mg/mL. The coefficient of variability values for saikosaponins in the extract are below 4%, and the recoveries for saikosaponin  c, a , and  d  are 95.2 ± 1.1, 96.5 ± 0.9, and 96.2 ± 1.0%, respectively. The changes in saikosaponin contents for a two-year growth of  Bupleurum falcatum  are measured by the established high-performance liquid chromatography method.

High-Performance Liquid Chromatographic Analysis of Saponin Compounds in Bupleurum falcatum