title: Application of hollow fiber liquid phase microextraction coupled with high-performance liquid chromatography for the study of the osthole pharmacokinetics in cerebral ischemia hypoperfusion rat plasma.
abstract: A simple and solvent-minimized sample preparation technique based on two-phase hollow fiber liquid phase microextraction has been developed and used to quantify the osthole in cerebral ischemia reperfusion rat plasma following oral administration. The analysis was performed by reversed phase high performance liquid chromatography with fluorescence detection. Extraction conditions such as solvent identity, agitation rate, salt concentration, extraction time, and length of the hollow fiber were optimized. Under the optimized conditions, the linear range of osthole in rat plasma was 5-500 ng mL(-1) (r(2) = 0.9997). The limit of detection (LOD) was 2 ng mL(-1) (S/N = 3) with limit of quantification (LOQ) being 5 ng mL(-1). The validated method has been successfully applied for pharmacokinetic studies of osthole from cerebral ischemia reperfusion rat plasma after oral administration.
authors: Department of Pharmacy, Urumqi General Hospital of PLA, Urumqi, Xinjiang 830000, China.
authors: Jun
authors: J
authors: Zhou
authors: Ping
authors: P
authors: Zeng
authors: Zhao Hui
authors: ZH
authors: Cheng
authors: Jing
authors: J
authors: Liu
authors: Feng Qiao
authors: FQ
authors: Wang
authors: Ruo Jun
authors: RJ
authors: Qian
mesh_terms: D000818:Animals; D002121:Calcium Channel Blockers / Q000097:blood / Q000302:isolation & purification / Q000493:pharmacokinetics* / Q000627:therapeutic use; D002544:Cerebral Infarction / Q000097:blood* / Q000188:drug therapy; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D003374:Coumarins / Q000097:blood / Q000302:isolation & purification / Q000493:pharmacokinetics* / Q000627:therapeutic use; D004195:Disease Models, Animal; D006801:Humans; D008297:Male; D051381:Rats; D017208:Rats, Wistar; D052617:Solid Phase Microextraction / Q000379:methods*
chemical_list: D002121:Calcium Channel Blockers; D003374:Coumarins; C046627:osthol