Pharmaceutical Laboratory needed with Validated method for the determination of hexetidine impurities, in the Hexetidine 0.1% mouthwash solution, is needed. We need a method for the determination of hexetidine impurities in the hexetidine oral solution. We'd like to help us to develop and validate method for this problem with the use of HPLC-UV-VIS or GC-FID instrumentation. If there is a more elegant solution employing other instrumental techniques, we would take the proposal for consideration. The main problems that we are experiencing are relatively low concentration of hexetidine in aqueous solution of the finished product with a weak response hexetidine and its impurities in these detectors. Known impurities: DEHYDROHEXETIDINE, HEXEDINE, TRIAMINE
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