Related Experiment Video
Updated: Aug 17, 2026

HPLC Coupled with Chemical Fingerprinting for Multi-Pattern Recognition for Identifying the Authenticity of Clematidis Armandii Caulis
Published on: November 11, 2022
[Studies on the constituents from Sambucus chinese]
1Guangdong Institute of Materia Medica, Guangzhou 510440.
Abstract:
Two compounds were isolated from the petroleum ether and ethyl acetate soluble fraction of ethanolic extract from Sambucus chinese Lindl. They were identified as: 3-beta-acetoxyolean-12-ene (I) , ethyl caffeate (II). I and II were isolated from this plant for the first time.
More Related Videos
07:16High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
07:45Technical Approach for Structural Analysis of an Unknown Compound in Huoxiang Zhengqi Oral Liquid based on Linear Ion Trap Mass Spectrometry
Published on: April 3, 2026
Related Concept Videos
Sputum Studies I: Gram Stain, cytology, and Acid-fast smear and culture
Gram Stain
The Gram Stain is an integral part of sputum studies. It involves the staining of sputum, which permits...
Sputum Studies II: Culture and Sensitivity
Sputum culture and sensitivity is a medical procedure used to diagnose bacterial infections in the respiratory tract and select the most appropriate antibiotics for treatment. This process involves analyzing sputum samples of thick and opaque secretions produced in the lungs and airways. These samples are collected from patients and then sent to the laboratory for analysis.
The test can identify various pathogens responsible for respiratory infections, including Streptococcus,...