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10. Simultaneous determination of ephedrine, pseudoephedrine, norephedrine and methylephedrine in Kampo medicines by high-performance liquid chromatography. Okamura N, Miki H, Harada T, Yamashita S, Masaoka Y, Nakamoto Y, Tsuguma M, Yoshitomi H, Yagi A. J Pharm Biomed Anal; 1999 Jun; 20(1-2):363-72. PubMed ID: 10704044 [Abstract] [Full Text] [Related]
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