一、在注射液制备过程中,调整好pH值并掌握其一般的变化情况,对稳定产品质量是十分重要的。虽然对于每个不同品种的注射液都有一个严格的pH值控制范围,但在实际生产工艺中,仅仅做到把pH值控制在规定范围以内,还是远远不够的。因为有相当一些注射液产品的稳定性如:含量、色泽、澄明度以及有效贮存期等,都与pH值的控制点有关;这 First, in the injection preparation process, adjust the pH value and master the general changes, the stability of product quality is very important. Although there is a strict pH control range for each injection of different varieties, it is not enough in the actual production process to merely control the pH within the specified range. Because there are quite a few injection product stability such as: content, color, clarity and effective storage period, etc., are related to the pH control point;