Abstract − Analytical Sciences, 21(2), 111 (2005).
Cetyltrimethylammonium Bromide-Enhanced Chemiluminescence Determination of Uric Acid Using a Luminol-Hexacyanoferrate(III)-Hexacyanoferrate(II) System
Suqin HAN,*,** Erbao LIU,** and Hua LI*
*Institute of Analytical Science, Northwest University, Xi’an 710069, P. R. China
**School of Chemistry and Material Science, Shanxi Normal University, Linfen 041004, P. R. China
**School of Chemistry and Material Science, Shanxi Normal University, Linfen 041004, P. R. China
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 × 10-10 - 9.0 × 10-7 M with a detection limit (3σ) of 2.58 × 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.
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