作者: Jun Zhou , Ping Zeng , Jiang Bing Sun , Feng Qiao Wang , Qiong Zhang
DOI: 10.1016/J.JPBA.2013.03.020
关键词: Chemistry 、 Echinacoside 、 Calibration curve 、 High-performance liquid chromatography 、 Fiber 、 Detection limit 、 Analyte 、 Chromatography 、 Sample preparation 、 Analytical chemistry 、 Pharmacokinetics 、 Spectroscopy 、 Clinical biochemistry 、 Drug discovery 、 Pharmaceutical Science
摘要: Abstract A simple and solvent-minimized sample preparation technique based on two-phase hollow fiber liquid phase microextraction (HF-LPME) was developed used to quantify the echinacoside in Parkinson's disease rat plasma following oral administration. Analysis accomplished by reversed-phase high performance chromatography (HPLC) with ultraviolet detection. The influence factors relevant HF-LPME processes were optimized. Under optimized conditions, preconcentration factor for 337. Calibration curves reasonable linearity ( r 2 ≥ 0.9998) obtained range of 5–750 ng mL −1 . Intra-day inter-day precision (RSD) ≤5.43% limit detection (LOD) analyte 2.0 ng mL (S/N = 3). validated method has been successfully applied pharmacokinetic studies (PD) after