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Analysis of alkaloids in Chinese Ephedra species by gas chromatographic methods
Author(s) -
Cui JianFang,
Zhou TongHui,
Zhang JianSheng,
Lou ZhiCen
Publication year - 1991
Publication title -
phytochemical analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 72
eISSN - 1099-1565
pISSN - 0958-0344
DOI - 10.1002/pca.2800020305
Subject(s) - chemistry , ephedrine , pseudoephedrine , chromatography , gas chromatography , mass spectrometry , alkaloid , organic chemistry , neuroscience , biology
The six Ephedra alkaloids (ephedrine, norephedrine, pseudoephedrine, norpseudoephedrine, methylephedrine and methylpseudoephedrine) in 12 species of Chinese Ephedra collected in 16 districts of China were separated and identified by gas chromatography combined with mass spectrometry following trimethylsilylation of the extract. The alkaloidal concentrations were determined using a gas chromatograph equipped with a nitrogen phosphorus detector. The methods described are sensitive, accurate and simple to perform.