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Open Access research with a European policy impact...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the European Policies Research Centre (EPRC).

EPRC is a leading institute in Europe for comparative research on public policy, with a particular focus on regional development policies. Spanning 30 European countries, EPRC research programmes have a strong emphasis on applied research and knowledge exchange, including the provision of policy advice to EU institutions and national and sub-national government authorities throughout Europe.

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Development and validation of an improved hplc method for the control of potentially counterfeit isometamidium products

Schad, G.J. and Allanson, A. and Mackay, S.P. and Cannavan, A. and Tettey, J.N.A. (2008) Development and validation of an improved hplc method for the control of potentially counterfeit isometamidium products. Journal of Pharmaceutical and Biomedical Analysis, 46 (1). pp. 45-51. ISSN 0731-7085

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Abstract

Isometamidium, a mixture of related substances of which 8-(3-m-amidinophenyl-2-triazeno)-3-amino-5-ethyl-6-phenylphenanthridinium chloride hydrochloride (M&B4180A) is the principal active component, is the only chemical agent available for prophylaxis of veterinary trypanosomiasis. A method for the simultaneous quantitation of the major constituents M&B4180A, 3-(3-m-amidinophenyl-2-triazeno)-8-amino-5-ethyl-6-phenylphenanthridinium chloride hydrochloride (M&B38897), 7-(m-amidinophenyldiazo)-3,8-diamino-5-ethyl-6-phenylphenanthridinium chloride hydrochloride (M&B4250) and 3,8-di(3-m-amidinophenyltriazeno)-5-ethyl-6-phenylphenanthridinium chloride dihydrochloride (M&B4596) is described. The related substances are resolved on a Gemini C18 column (150 mm × 4.6 mm, 5 μm) using a mobile phase composed of a mixture of acetonitrile and 50 mM ammonium formate buffer pH 2.8 (25:75 v/v) at a flow rate of 1 ml/min with UV detection at 320 nm. The method is compatible with electrospray ionisation mass spectrometry and provides a tool for the control of substandard and counterfeit commercial preparations of isometamidium.