碳酸氢鈉注射液是一个重要的酸中毒解剂。我們为了弄清配制該制剂灭菌前后的PH值和通CO_2的关系,进行了以下的試驗观察。試驗:称取合乎注射用的碳酸氢鈉20克,用常溫(19～25℃)蒸溜水适量溶解,漏斗过滤于容量瓶中做成500毫升的溶液。灭菌前,取10毫升测定PH为8.2。取90毫升溶液,通CO_2 Sodium bicarbonate injection is an important acid detox agent. In order to clarify the preparation of the preparation before and after sterilization PH value and the relationship between CO_2, the following experimental observation. Test: Weigh 20 g sodium bicarbonate for injection, dissolve it in distilled water at room temperature (19 ~ 25 ℃), and filter into a volumetric flask with a funnel to make a 500 ml solution. Before sterilization, take 10 ml and measure pH 8.2. Take 90 ml of solution, through CO_2