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复方氯化钠注射液为临床常用大型输液,可补充体液,用于脱水症,收载于中国药典1963年版。本品质量常遇到的问题是钙盐含量。从最近我所化验的四批样品中,钙盐含量不合格者为三批,其中一批钙盐含量竞达到1％,超出药典规定量的30倍。出现上述情况的原因,主要在于药用氯化钙[CaCl-2·2H20]露置空气中极易潮解,致使称取的氯化钙量无法准确估计。
Compound sodium chloride injection for large clinical infusion, can add body fluids for dehydration, contained in the Chinese Pharmacopoeia 1963 edition. The quality of the product often encountered the problem of calcium content. From the four batches of samples I have recently tested, those with unsatisfactory calcium content are three batches, of which one batch of calcium reaches up to 1%, exceeding 30 times the amount prescribed in the Pharmacopoeia. The reason for the above situation is that the medicinal calcium chloride [CaCl-2 · 2H20] can easily deliquesce in the exposed air, making it impossible to accurately estimate the amount of calcium chloride weighed.