Differentiation of Aurantii Fructus Immaturus from Poniciri Trifoliatae Fructus Immaturus using flow-injection mass spectrometric (FIMS) metabolic fingerprinting method combined with chemometrics

- Aurantii Fructus Immaturus and Fructus Poniciri Trifoliatae Immaturus were differentiated.
- Seven characteristic ions from eight compounds were screened out as chemical markers.
- The eight compounds were identified.
- Naringin, hesperidin and neohesperidin were quantified.
- The results help using Aurantii Fructus Immaturus correctly in clinic.