实验证明,在丹参注射液生产过程中第一次醇沉的沉淀物中,含有丹参的有效成分;从紫外分光仪测得的消光值说明,沉淀物中提出的原儿茶酚醛约为原液的二分之一。为提高注射液的含量,可考虑将沉淀物再提取。 Experiments have shown that the first alcohol precipitation in the production process of Danshen injection contains the active ingredient of Salvia miltiorrhiza; the extinction value measured by the UV spectrometer indicates that the protocatechuic phenolic aldehyde in the precipitate is about the original solution. Half. In order to increase the content of the injection solution, it may be considered to re-extract the precipitate.