Evidence-Based Complementary and Alternative Medicine

Research Article

Pharmacokinetic Comparative Study of Gastrodin and Rhynchophylline after Oral Administration of Different Prescriptions of Yizhi Tablets in Rats by an HPLC-ESI/MS Method

Table 1

HPLC-ESI-MS accurate mass measurement of the three compounds.
CompoundRetention timeIonElemental compositionsTheoreticalExperimentalDBEError
(min)mDappm
RIN 23.56[M-H]−C22H27N2O4383.1970383.202410.52.637313.876
GAS8.75[M+CH3COO]−C15H21O9345.1185345.12125.51.84245.3384
HBA11.25[M-H-H2O]−C7H5O105.0340105.03395.5−0.1398−1.3313