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We present the validation of a developed method using capillary zone electrophoresis (CZE) for quantitative analysis of three phenothiazines: thiazinamium methylsulphate (TMS), promazine hydrochloride (PMH) and promethazine hydrochloride (PTH) in pharmaceutical formulations. The influence of various parameters affecting the CZE separation (buffer pH and concentration, acetonitrile percentage, capillary...
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