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Reference type: Journal
Authors: Dzygiel P, O'Donnell E, Fraier D, Chassaing C, Cormack PAG
Article Title: Evaluation of water-compatible molecularly imprinted polymers as solid-phase extraction sorbents for the selective extraction of sildenafil and its desmethyl metabolite from plasma samples.
Publication date: 2007
Journal: Journal of Chromatography B
Volume: 853
Issue: (1-2)
Page numbers: 346-353.
DOI: 10.1016/j.jchromb.2007.03.037
Alternative URL: http://www.sciencedirect.com/science/article/B6X0P-4NFR59V-3/2/242b8e9d67ba283417c065a932e481c6

Abstract: The evaluation of molecularly imprinted polymers (MIPs) as selective sorbents for the solid-phase extraction of sildenafil and its principal metabolite, desmethylsildenafil, was investigated. Two MIPs were synthesised using structural analogues of sildenafil as templates, and a comparison of the performance of the two MIP sorbents in organic and aqueous media was performed. Additionally, the feasibility of applying molecularly imprinted solid-phase extraction (MISPE) to the clean-up of plasma samples containing sildenafil and desmethylsildenafil was investigated. A preliminary, quantitative MISPE for the determination of both compounds in plasma was also performed. The results showed that the MIPs used for the selective extraction of sildenafil gave better compound recovery when aqueous samples were used in comparison to organic-based samples. A preliminary, quantitative MISPE of sildenafil and desmethylsildenafil indicated that the imprinted materials could be used successfully as SPE sorbents for sample pre-treatment for the determination of sildenafil, and related compounds, in plasma
Template and target information: sildenafil, desmethylsildenafil, Viagra
Author keywords: Molecularly imprinted polymers, Sildenafil, Solid-phase extraction

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