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Reference type: Journal
Authors: Dong XC, Wang W, Ma SJ, Sun H, Li Y, Guo JQ
Article Title: Molecularly imprinted solid-phase extraction of (-)-ephedrine from Chinese Ephedra.
Publication date: 2005
Journal: Journal of Chromatography A
Volume: 1070
Issue: (1-2)
Page numbers: 125-130.
DOI: 10.1016/j.chroma.2005.03.017
Alternative URL: http://www.sciencedirect.com/science/article/B6TG8-4FRHD70-8/2/5c4732567ae9e2b6e0534095cd1100e9

Abstract: Method of molecularly imprinted solid phase extraction (MISPE) of (-)-ephedrine from Chinese Ephedra has been developed in the research. The molecularly imprinted polymer (MIP) with good selectivity and affinity for (-)-ephedrine was synthesized with (-)-ephedrine as the template, methacrylic acid as the functional monomer. The washing and elution conditions in MISPE were selected and optimized for efficient analyte extraction and sample clean-up. A clean analytical HPLC base line of ephedra extract was obtained after MISPE, which indicated that the sample pre-treatment was efficient. Good recovery and precision were obtained in the assessment for the MISPE-HPLC procedure, which demonstrated it is a reliable method and can be used for the determination of (-)-ephedrine in herbal ephedra
Template and target information: (-)-ephedrine
Author keywords: molecularly imprinted solid phase extraction, (-)-ephedrine, Chinese Ephedra, Sample clean-up

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