Method for constructing fingerprint spectrum of QingNing powder freeze-dried powder and fingerprint spectrum

The invention provides a Qingning powder freeze-dried powder fingerprint spectrum construction method and a fingerprint spectrum, and the method comprises the following steps: S1, taking Qingning powder freeze-dried powder, adding a methanol aqueous solution, and carrying out ultrasonic extraction to obtain a test solution; s2, taking the test solution, injecting the test solution into a high performance liquid chromatograph, performing chromatographic analysis, and recording a chromatogram; s3, performing mass spectrometric analysis on the test solution to obtain a mass spectrometric result map; and S4, constructing the fingerprint spectrum according to the chromatogram and the mass spectrum result map. According to the method disclosed by the invention, the variety and quantity of main chemical components contained in the traditional Chinese medicine Qingning powder are comprehensively detected, the fingerprint spectrum of the Qingning powder is established according to the method, analysis and detection ar