答:在输液的生产中经常需要调整pH至规定范围。由于原料产地不同以及注射用水pH波动等原因,加酸量也有变化。为了避免调过头或反复调整,在测知pH的情况下,可通过估算得出加酸量,以便一次近似地调至所需的pH。现举例如下: 配制5%葡萄糖注射液100万ml,测pH为4.8,欲 A: In the production of infusion often need to adjust the pH to the specified range. Due to the different origin of raw materials and water pH for injection and other reasons, the amount of acid is also changed. In order to avoid overshooting or repeated adjustments, the amount of added acid can be estimated by measuring the pH so that the desired pH is adjusted once and for all. Now for example as follows: Preparation of 5% glucose injection 1 million ml, pH measured 4.8,