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Capillary Electrophoresis With End-Column Electrochemiluminescence for Ultrasensitive Determination of Urapidil Hydrochloride in Rat Plasma and Its Application to Pharmacokinetics Study

Capillary Electrophoresis With End-Column Electrochemiluminescence for Ultrasensitive Determination of Urapidil Hydrochloride in Rat Plasma and Its Application to Pharmacokinetics Study

Shuangjiao Sun, Yanfen Wei, Chanjuan Long, Biyang Deng

J Chromatogr B Analyt Technol Biomed Life Sci. 2015 Dec 1;1006:146-150.

PMID: 26551206

Abstract:

A simple, sensitive and selective method for determination of urapidil hydrochloride was developed using capillary electrophoresis with electrochemiluminescence (CE-ECL) technique for the first time. Under the optimized experimental conditions, the ECL intensity was linear with the concentration of urapidil hydrochloride in the range from 0.050 to 50.0ng/mL and the detection limit was 0.014ng/mL (S/N=3). The proposed method was used for studying pharmacokinetics of urapidil hydrochloride in rat plasma and the main pharmacokinetic parameters of the peak concentration (Cmax), half life time (T1/2) and peak concentration time (Tmax) were 240.45±21.15ng/mL, 0.58±0.16h and 1.08±0.13h, respectively. The recoveries of urapidil hydrochloride in the diluted extracts of rat plasma samples ranged from 96.68 to 98.82%. The RSD was lower than 3%.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP64887145	Urapidil hydrochloride		64887-14-5	Price

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