Abstract
Objective:To clear the amounts of the principal active/toxic components in herbs containing aristolochic acids(HCAAs),which are still used as medicine and/or seasoning in many ethnic minority areas of China.Methods:In this study,six major active and toxic components in HCAAs were extracted with ultrasonic extraction.With 6-O-methyl guanosine as internal standard,the target compounds were analyzed qual-itatively and quantitatively by using ultrahigh performance liquid chromatography-electrospray ionization-tandem mass spectrometry(UPLC-ESI-MS/MS)with multiple reaction monitoring-information dependent acquisition-enhanced production ion scanning mode(MRM-IDA-EPI)combined with dynamic background subtraction(DBS)function.Results:The method showed good linearity in the linear range of the six analytes.The limit range of detection was from 0.01 ng/mL to 0.27 ng/mL All of the detection repeatability,extraction repeatability and accuracy of the method were good.After extraction,the samples remained stable at 15 ℃ within 24 h.Six analytes were all found in samples except aristolactam(AL)in sample 2,and the contents varied greatly.The contents of these compounds decreased in fruits,leaves and stems of Aristolochia delavayi successively.Conclusion:This method has the advantages of less sample dosage,simple operation,short analysis cycle,high sensitivity,specificity and accuracy.It laid a good foundation for guiding the safety of HCAAs,the in-depth study of pharmacological and toxicological effects and the scientific and standardized processing and compatibility of HCAAs.
基金项目
国家自然科学基金(81603076)
Minzu University of China(2021MDYY53)
NETL
NSTL
万方数据