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Direct Methanol Catalytic Fuel Cell, for measuring Ethanol Contents in Pharmaceutical Tinctures

Author(s):

Mauro Tomassetti*, Riccardo Angeloni, Sergio Marchiandi, Mauro Castrucci, Elisabetta Martini and Luigi Campanella   Pages 1 - 9 ( 9 )

Abstract:


In order to test real direct applicability for analytical purposes, a small and simple direct methanol (or ethanol) catalytic, enzymatic or non-enzymatic fuel cell (DMFC) was used for the analysis of ethanol-based pharmaceutical tinctures; a detailed experimental study was conducted on five different pharmaceutical tinctures available at drugstores. The results obtained using both enzymatic and non-enzymatic devices were compared with those obtained by analyzing the same pharmaceutical samples with a conventional catalase biosensor. Finally, the results were compared with the nominal values provided by manufacturing firms. The correlations between the different experimental and nominal values considered were good in general or satisfactory and the applied statistical tests (f-test and t-test) were also very comforting. At the end of the study, the use of enzymatic DMFC proved to be better than non- enzymatic DMFC devices, because it requires shorter analysis times.

Keywords:

Direct methanol catalytic fuel cell (DMFC), pharmaceutical tinctures, ethanol, enzyme, catalytic reaction, catalase biosensor

Affiliation:

Department of Chemistry, ``Sapienza`` University of Rome, P.le Aldo Moro 5, 00185, Rome, Department of Chemistry, ``Sapienza`` University of Rome, P.le Aldo Moro 5, 00185, Rome, Department of Chemistry, ``Sapienza`` University of Rome, P.le Aldo Moro 5, 00185, Rome, Department of Chemistry, ``Sapienza`` University of Rome, P.le Aldo Moro 5, 00185, Rome, Department of Chemistry, ``Sapienza`` University of Rome, P.le Aldo Moro 5, 00185, Rome, Department of Chemistry, ``Sapienza`` University of Rome, P.le Aldo Moro 5, 00185, Rome



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