OBJECTIVE: To prepare the disinfectant for venepuncture in children and to establish the quality control for this preparation. METHODS: Nicotinic acid and racanisodamine were taken as the chief components for the preparation of this disinfectant, 75% alcohol as the solvent. Nicotinic acid were determined by ultraviolet and visible spectrophotometry(UV-Vis); racanisodamine were determined by nonaqueous titrations. RESULTS: The average recoveries of racanisodamine and nicotinic acid were 99.96%(RSD=0.04%) and 100.04%(RSD=0.16%) respectively, which all were in the range of 98.87%～100.8%. CONCLUSION: The disinfectant produced with the established method is simple in preparation, accurate in content determination, stable and reliable in quality.
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