Related Experiment Video
Updated: Jun 21, 2026
HPLC Coupled with Chemical Fingerprinting for Multi-Pattern Recognition for Identifying the Authenticity of Clematidis Armandii Caulis
Published on: November 11, 2022
Detection of the potential adulterant Teucrium chamaedrys in Scutellaria baicalensis raw material and extract by
Thao Hong1, Mijeong Lee Jeong, Michael Zahn
1Unigen Inc., Quality Control/Quality Assurance Department, 2660 Willamette Dr, NE, Lacey, WA 98516, USA.
Abstract:
Teucrium chamaedrys (Gemander) has been reported as an adulterant of Scutellaria lateriflora (American skullcap) herbal preparations and is also known to be hepatotoxic. A quick and simple high-performance thin-layer chromatographic (HPTLC) method was developed for the detection of T. chamaedrys (Germander) in S. baicalensis (Chinese skullcap) extract, an ingredient of the proprietary blend product, Univestin. The HPTLC profile of T. chamaedrys was distinguished from that of S. baicalensis by its bright green fluorescence bands. This simple method can be completed in an hour for the quality control of Univestin and its raw material, S. baicalensis. The method is sensitive and can detect T. chamaedrys at levels as low as 0.5% (w/w).
