In June 2023, the national invention patent A Method for Detecting Volatile Chemical Components in Weichang 'an Pills was authorized. Weichang 'an Pill, the exclusive variety of Le Ren Tang under the Group, is made of ten pure Chinese medicines, such as Radix Aucklandiae, Lignum Aquilariae Resinatum, artificial musk, croton cream, etc., which has the effects of dispelling turbidity by fragrance, regulating qi and relieving pain, invigorating stomach and guiding stagnation, and is used for diarrhea, nausea, vomiting, dyspepsia, enteritis, etc.

Weichang 'an Pill is a micro-pill feaured by"small dosage and good effect". At present, it has obtained more than 30 invention patents, including prescription, technology, detection method, new purpose and so on.

he invention patent granted this time provides a detection method of volatile chemical components in Weichangan Pills. The volatile chemical components in Weichangan Pills are identified by gas chromatography-mass spectrometry, extracted by ultrasonic extraction, and analyzed and identified by GCMS combined with retention index method. The method has good reproducibility and reliability, which provides scientific basis for the effective substance foundation and quality control of Weichangan Pills, and will also provide more powerful support for the academic promotion of Weichangan Pills.