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Items: 8

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New observations on the secondary chemistry of world Ephedra (Ephedraceae).

Caveney S, Charlet DA, Freitag H, Maier-Stolte M, Starratt AN.

Am J Bot. 2001 Jul;88(7):1199-208.

5.

Determination of ephedrine-type alkaloids in dietary supplements by LC/MS using a stable-isotope labeled internal standard.

Gay ML, White KD, Obermeyer WR, Betz JM, Musser SM.

J AOAC Int. 2001 May-Jun;84(3):761-9. No abstract available.

PMID:
11417640
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Solid-phase extraction cleanup and liquid chromatography with ultraviolet detection of ephedrine alkaloids in herbal products.

Hurlbut JA, Carr JR, Singleton ER, Faul KC, Madson MR, Storey JM, Thomas TL.

J AOAC Int. 1998 Nov-Dec;81(6):1121-7.

PMID:
9850573
8.

Chiral gas chromatographic determination of ephedrine-type alkaloids in dietary supplements containing Má Huáng.

Betz JM, Gay ML, Mossoba MM, Adams S, Portz BS.

J AOAC Int. 1997 Mar-Apr;80(2):303-15.

PMID:
9086588

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