Química Nova | |
Determination of cinnamic acid in human urine by flow injection chemiluminescence | |
Liu, Yanfeng1  Wang, Shumin1  Zheng, Xingwang1  Normal University, Xinxiang, China1  Shaanxi Normal University, China1  Cui, Fengling1  Fan, Xuemei1  Su, Zhikui1  Chen, Fengying1  Liu, Ping1  Shuoluo University, China1  | |
关键词: flow injection chemiluminescence; potassium permanganate; cinnamic acid.; | |
DOI : 10.1590/S0100-40422011000800020 | |
学科分类:化学(综合) | |
来源: Sociedade Brasileira de Quimica | |
【 摘 要 】
It was found that cinnamic acid can react with potassium permanganate in the acidic medium and produce chemiluminescence, which was greatly enhanced by glyoxal. Under the optimum conditions, the linear range for the determination of cinnamic acid was 1.0×10-8 to 1.0×10-4 mol L-1 with a detection limit of 8.0×10-9 mol L-1, the relative standard deviation was 1.7% for 2.0×10-6 mol L-1 cinnamic acid solution in nine repeated measurements. This method was found to be novel0simple0fast and sensitive, it was successfully applied to the determination of cinnamic acid in human urine. Furthermore, the possible reaction mechanism was also discussed.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912050595436ZK.pdf | 299KB | download |