A Rapid and Feasible ¹H-NMR Quantification Method of Ephedrine Alkaloids in <i>Ephedra</i> Herbal Preparations

A highly specific and sensitive proton nuclear magnetic resonance (¹H-NMR) method has been developed for the quantification of ephedrine alkaloid derivatives in <i>Ephedra</i> herbal commercial prescriptions. At the region of δ 4.0 to 5.0 ppm in the ¹H NMR spectrum, the charact...

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Váldodahkkit:	Hsin-Yi Hung, Shih-Min Lin, Chia-Ying Li, Sio-Hong Lam, Yu-Yi Chan, Meei-Jen Liou, Po-Chuen Shieh, Fu-An Chen, Ping-Chung Kuo, Tian-Shung Wu
Materiálatiipa:	Artigo
Giella:	Inglês
Almmustuhtton:	MDPI AG 2021-03-01
Ráidu:	Molecules
Fáttát:	quantitative analysis ephedrine pseudoephedrine <i>Ephedra</i> <sup>1</sup>H-NMR internal standard
Liŋkkat:	https://www.mdpi.com/1420-3049/26/6/1599
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