Abstract
A new chemiluminescence (CL) reaction was observed when cloperastine hydrochloride was injected into the reaction mixture after the CL reaction of Ce(IV) and sodium sulfite finished. A new flow injection CL method for the determination of cloperastine hydrochloride was established based on the CL reaction. The relative standard deviation (RSD) for the determination of cloperastine hydrochloride was 1.3% (n=11, c=1.0×10−6 g/mL). The CL intensity responded linearly to the concentration of cloperastine hydrochloride in the range 2.0×10−7∼2.0×10−5 g/mL (r=0.9962). The detection limit was 5×10−8 g/mL cloperastine hydrochloride. The method had been applied to the determination of cloperastine hydrochloride in tablets with satisfactory results.
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