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在辽宁省药品标准(1980年,91页)和吉林省药品标准(1977年,306页)中,复方水杨酸钠注射液溴化钠的含量测定(简称辽宁法和吉林法)虽然都是银量法,但指示终点方法不同,滴定终点都没有明显突跃,初检者很难掌握。我们将中国药典(1977年版,684页)溴化钠的含量测定(简称药典法)略作修改,用于该项测定,得到满意结果。改进方法:精密吸取注射液10ml,加水80m1,2%糊精液10ml,曙红钠指示液10滴,用N/10硝酸银液滴定至沉淀呈现紫红色即得(每mlN/10硝酸银液相当于10.29mg NaBr)。
In Liaoning Province, the pharmaceutical standards (1980, 91 pages) and Jilin Province Drug Standards (1977, 306 pages), the determination of compound sodium salicylate sodium bromide content (referred to as Liaoning and Jilin Act) are Silver volume method, but the method of indicating the end of different end titration no significant jump, the first seizure is difficult to grasp. We will Chinese Pharmacopoeia (1977 edition, 684 pages) Determination of sodium bromide (referred to as the Pharmacopoeia) slightly modified for the determination of satisfactory results. Improved method: precision injection injection 10ml, add water 80ml, 2% dextrin 10ml, 10 drops of sodium eosin indicator, with N / 10 silver nitrate droplets to the precipitate was purple red that (mlN / 10 silver nitrate solution equivalent At 10.29 mg NaBr).