我厂生产的复方氨基比林注射液(10％)配方如下: 氨基比林 715g 巴比妥 285g EDTA二钠 1g 无水乙醇 2500ml 甘油 400ml 加水稀释至 10000ml 为分别测定注射液中氨基比林和巴比妥的含量,有用氯仿在碱性、酸性介质中提取,再蒸去溶剂的重量法和使用盐酸液、硝酸银液滴定的容量法。前者手续繁琐,后者在配制时若用酸碱调节过pH值时,测定就不准 The formula of compound aminopyrine injection (10%) produced by our factory is as follows: Aminopyrine 715g Barbiturate 285g Disodium EDTA 1g Absolute ethanol 2500ml Glycerol 400ml Dilute to 10000ml with water To determine the concentration of aminopyrine and The appropriate amount of content, with chloroform in alkaline, acidic medium extraction, and then distilled off the solvent gravimetric method and the use of hydrochloric acid, silver nitrate titration volumetric method. The former procedures cumbersome, the latter in the preparation of acid-base if adjusted pH, the determination is not allowed