Cetyltrimethylammonium bromide-enhanced chemiluminescence determination of uric acid using a luminol-hexacyanoferrate(III)-hexacyanoferrate(II) system.
A chemiluminescence (CL) method using flow injection (FI) was developed for the determination of uric acid based on the enhancement chemiluminescence intensity of luminol-hexacyanoferrate(III)-hexacyanoferrate(II) in the presence of cetyltrimethylammonium bromide and the uric acid species. The linear range was 7.0 x 10(-10) - 9.0 x 10(-7) M with a detection limit (3sigma) of 2.58 x 10(-10) M, which was about two orders of magnitude lower than those reported. The proposed method was used for the determination of uric acid in real samples.
Han
Suqin
S
Institute of Analytical Science, Northwest University, Xi'an 710069, P R. China.
Liu
Erbao
E
Li
Hua
H
D000077286:Cetrimonium; D002593:Cetrimonium Compounds / Q000737:chemistry*; D005292:Ferricyanides / Q000737:chemistry*; D005295:Ferrocyanides / Q000737:chemistry*; D007202:Indicators and Reagents / Q000737:chemistry; D007700:Kinetics; D049449:Luminescence; D008165:Luminol / Q000737:chemistry*; D013501:Surface-Active Agents / Q000737:chemistry; D014527:Uric Acid / Q000032:analysis* / Q000737:chemistry*
D002593:Cetrimonium Compounds; D005292:Ferricyanides; D005295:Ferrocyanides; D007202:Indicators and Reagents; D013501:Surface-Active Agents; C007931:hexacyanoferrate III; D014527:Uric Acid; D008165:Luminol; C020354:hexacyanoferrate II; D000077286:Cetrimonium