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分光光度法测定中药制剂成分含量时 ,通常要配制去掉被测药的群药作为空白群药考察干扰 ,没有考虑被测药本身所含的干扰成分。中药材的测定经常不配空白液或只以其中的某一成分作为干扰进行考察 ,致使测定结果偏高。本实验建立了薄层洗脱方法制备空白液 ,研究被测药干扰成分对
When spectrophotometric method is used to determine the content of traditional Chinese medicine preparations, it is usually necessary to prepare group medicines that remove the tested medicines as blank group medicines to investigate interference, without considering the interference components contained in the tested medicines themselves. The determination of Chinese herbal medicines is often not carried out with blank liquids or only one of them is used as a disturbance to investigate, resulting in a high measurement result. In this experiment, a thin layer elution method was used to prepare a blank solution to study the interference component of the tested drug.