Mass Spectroscopic Fingerprinting Method for Differentiation Between Scutellaria Lateriflora and the Germander (Teucrium Canadense and T. Chamaedrys) Species

Overview

Journal J AOAC Int

Publisher Oxford University Press

Specialty Chemistry

Date 2010 Oct 7

PMID 20922946

Citations 6

Authors

Pei Chen

Long-Ze Lin

James M Harnly

Affiliations

Soon will be listed here.

Abstract

Scutellaria lateriflora, commonly known as skullcap, is used as an ingredient in numerous herbal products. However, it has been occasionally adulterated/contaminated with Teucrium canadense and T. chamaedrys, commonly known as germander, which contain hepatotoxic diterpenes. Due to the morphological similarities between the two genera, analytical methodologies to distinguish authentic S. lateriflora from the Teucrium species are needed to ensure public safety. In this study, a direct-injection electrospray ionization/MS method was used to generate spectral fingerprints of extracts from 21 skullcap and germander samples at a rate of 90 s/sample. MS fingerprints were analyzed by principal component analysis. The newly developed method offers a rapid and easy way to differentiate between skullcap and germander samples.

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