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Analysis of Alkaloids in Chinese Ephedra Species by Gas Chromatographic Methods (1991)

Analysis of Alkaloids in Chinese Ephedra Species by Gas Chromatographic Methods (1991)

  1. Jatelka
    Phytochemical Analysis, Vol 2, 116-119, 1991

    Cui JF, Zhou TH, Zhang JS and Lou ZC

    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.