1results about How to "Few samples" patented technology

This invention belongs to the field of quality control technology, specifically relating to a quality control method for a compound traditional Chinese medicine preparation containing rhubarb. The quality control method of this invention uses thin-layer chromatography (TLC) to identify rhubarb, Viola yedoensis, Kochia scoparia, Cnidium monnieri, Coptis chinensis, or Dictamnus dasycarpus in a rhubarb antipruritic lotion. The method uses a developing solvent with a volume ratio of toluene, acetone, ethyl acetate, and formic acid of 8-10:1-3:1-2:0.1-2 to separate and extract the components to be analyzed from numerous effective drug components. While ensuring identification accuracy, this method allows for the identification of 4-6 traditional Chinese medicine components using a single TLC plate, exhibiting high stability and repeatability. This invention offers the technical advantages of requiring less sampling, simplifying quality testing, and greatly improving detection efficiency.