Determination of Urapidil by Flow Injection Chemiluminescence

Abstract

Abstract: A reverse flow injection chemiluminescence(CL) method for the determination of urapidil was firstly described. It was found that the CL intensity from the Luminol ClO^- system could be enhanced in the presence of urapidil. The increase of CL emission was correlated with urapidil mass concentration in the range from 0.2 to 100 μg/mL, the detection limit was 0.01 μg/mL and the relative standard deviation was 1.3%(ρ =4 μg/mL, n =11), a sampling frequency of 150 h^-1 was attained. The method was applied to the determination of leucoge in pharmaceutical preparations with recovery of 101.0% and 101.3%.

Key words: Flow injection, Chemiluminescence, Urapidil

CLC Number:

O657

TrendMD:

LANG Hui Yun, LI Ya Rong, ZHANG Wei Ping, ZHANG Xiu Jun, SHEN Yie Hua . Determination of Urapidil by Flow Injection Chemiluminescence[J]. Chem. J. Chinese Universities, 2003, 24(4): 618.

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Determination of Urapidil by Flow Injection Chemiluminescence

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