Optimization of Determination Method of Citalopram Hydrobromide by Non-aqueous Potentiometric Titration

OBJECTIVE To establish a determination method of citalopram hydrobromide by non-aqueous potentiometric titration without using mercurate. METHODS Non-aqueous potentiometric titration was used for assay. Citalopram hydrobromide was dissolved in glacial acetic acid-acetic anhydride(1∶5) instead of mercuric salt. RESULTS The results of the improved method were same with that of the original methods. CONCLUSION The improved method discards mercuric salt and obtain an abrupt change of the titration cruve. It is simple and accurate for the determination of citalopram hydrobromide.