Electrochemical behaviour of Venlafaxine and its determination in pharmaceutical products using square wave voltammetry

Farmaco. 1999 Mar 31;54(3):145-8. doi: 10.1016/s0014-827x(99)00007-5.

Abstract

An electrochemical method for the determination of Venlafaxine in pharmaceutical formulations recently available on the European market is described. The electrochemical oxidation of Venlafaxine was studied at a HMDE electrode over a wide pH range (1.9-10.0) of buffered aqueous solutions using different potential sweep techniques. The results obtained showed that the best definition of the analytical signals was found in boric acid/potassium tetrahydroxoborate buffer at pH 8.7 using anodic stripping square wave voltammetry. Recovery trials were performed to assess the accuracy of results and these were compared to those provided by a HPLC technique according to the method described in literature and to the features of the pharmaceutical formulations. A relative deviation of < 0.2% was obtained. With the developed methodology, the limit of detection was 0.124 mg/l.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antidepressive Agents, Second-Generation / chemistry*
  • Cyclohexanols / chemistry*
  • Electrochemistry
  • Hydrogen-Ion Concentration
  • Solutions
  • Venlafaxine Hydrochloride

Substances

  • Antidepressive Agents, Second-Generation
  • Cyclohexanols
  • Solutions
  • Venlafaxine Hydrochloride