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我市第一人民医院自制(?)氨酸钠注射液,以配合临床治疗肝性昏迷症。为了确保制剂质量,我们拟定了它的快速定最方法,利用甲醛与氨基的缩合作用,使滴定曲线向酸性方向移动。这个方法比本刊1957年1月号内介绍的两种定量方法简单易行,适合于药房内快速分析之用。兹介绍如下:取检品28.74%(?)氨酸钠注射液2ml,置25ml 容量瓶中,加蒸馏水稀释至刻度。取出稀释液2ml,加甲醛溶液(36%W/W)2ml,加麝香草酚酞指示剂三滴,以 N/10 NaOH 溶液滴定至呈淡蓝色。另准确吸取同样的甲醛溶液2ml,加蒸馏水2ml,加麝香草酚酞指示
First People’s Hospital of our city homemade (?) Sodium acid injection to meet the clinical treatment of hepatic coma. In order to ensure the quality of the preparation, we have developed its rapid determination method, the use of formaldehyde and amino condensation, the titration curve to the acidic direction. This method is simpler than the two quantitative methods described in our January issue of January 1957 and is suitable for rapid analysis in pharmacies. Here are the introduction: Take the seized goods 28.74% (?) Sodium injection 2ml, set 25ml volumetric flask, diluted with distilled water to the mark. Take 2ml of diluted solution, add 2ml of formaldehyde solution (36% W / W), add three drops of thymolphthalein indicator and titrate to light blue with N / 10 NaOH solution. Another accurate absorption of the same formaldehyde solution 2ml, add distilled water 2ml, add thymolphthalein instructions