Related Experiment Video
Updated: Feb 9, 2026

Author Spotlight: Integrating 2D-HPLC-MS and Molecular Networking in Natural Medicine Analysis
Published on: December 8, 2023
[Study on ethnic medicine quantitative reference herb,Tibetan medicine fruits of Capsicum frutescens as a case]
Ke Zan1, Gan Cui2, Li-Nong Guo1
1National Institutes for Food and Drug Control, Beijing 100050, China.
Abstract:
High price and difficult to get of reference substance have become obstacles to HPLC assay of ethnic medicine. A new method based on quantitative reference herb (QRH) was proposed. Specific chromatograms in fruits of Capsicum frutescens were employed to determine peak positions, and HPLC quantitative reference herb was prepared from fruits of C. frutescens. The content of capsaicin and dihydrocapsaicin in the quantitative control herb was determined by HPLC. Eleven batches of fruits of C. frutescens were analyzed with quantitative reference herb and reference substance respectively. The results showed no difference. The present method is feasible for quality control of ethnic medicines and quantitative reference herb is suitable to replace reference substances in assay.
More Related Videos
05:59An In Vitro Dissolution Determination of Multi-Index Components in Tibetan Medicine Rhodiola Granules
Published on: November 4, 2022
09:24Standardized Identification of Compound Structure in Tibetan Medicine Using Ion Trap Mass Spectrometry and Multiple-Stage Fragmentation Analysis
Published on: March 17, 2023
Related Concept Videos
Microorganisms in Medicine and Therapeutics
Combination Therapies and Personalized Medicine
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
Fruit Development, Structure, and Function
Ethnic Identity within a Larger Culture
Inertial Frames of Reference
Non-inertial Frames of Reference