ABSTRACT
OBJECTIVE:To establish the GC-MS fingerprint spectrum of volatile components in Danqi piantan capsule. METH-ODS:GC-MS was performed. HPLC conditions:The column was BPX 5,temperature of injection was 250 ℃,respectively;carri-er gas was He,flow rate was 1 ml/min,split injection,split ratio was 50:1 and volume injection was 0.02 μl. MS conditions:ion source was EI,bombarding energy was 70 eV,temperature of ion source and transmission line was 200 ℃ and 250 ℃,respective-ly;scan range was 40-500 amu,solvent delay of 2 min. The peak with largest chromatographic peaks areas was reference peak,com-mon peaks of 10 batches of Danqi piantan capsule were analyzed. Similarity evaluation system for chromatographic figerprint of TCM was adapted for the similarity analysis and NIST standard MS database was used to retrieve and identify the common peak. RESULTS:There were totally 13 common peaks in the 10 batches of Danqi piantan capsule with similarity degree>0.92;accord-ing to the verification,the fingerprint spectrum was a dapted for the similarity analysis and reference fingerprint of 10 batches of Danqi piantan capsule showed good consistency. The No.3 peak was Angelica sinensis unique,the No.2,4,5,7,8,12 peak was Acorus tatarinowii unique. CONCLUSIONS:The established method is specific and stable,and can provide basis for the quality as-sessment for Danqi piantan capsule.
ABSTRACT
Objective To establish the HPLC-DAD-ELSD fingerprint of Radix astragali,provide new methods for science quality control of the medicinal materials.Methods Application of HPLC-DAD-ELSD techniques were connected in series.The mobile phase A: 10% acetonitrile,B: 90% acetonitrile,detecting wavelength: 265 nm,flow rate: 1 mL/min,column temperature: 35 ℃,sample size: 20 ?L,gain: 20,tube: 55 ℃,neb: 65%,air pressure: 2.068 5?105 Pa.The mutual mode was established depending on ten Astragalus samples from different growing areas in Gansu.The software "Similarity Evaluation System for Chromatographic Fingerfrint of Chinese Materia Medica" was applied to analyzing.ResultsThe established method is good for the separation of saponins,flavonoids from Radix Astragali,and simultaneous determination of the two different components in one sample injection.The similarity of different batches of medicinal materials is fit for the requirement.Conclusion The method is workable to simultaneously determine saponins and flavonoids fingerprint from Radix Astragali,and to control its quality.
