流动注射化学发光法测定肉桂酸  

Flow injection chemiluminescence determination of salicylic acid

作　　者：樊雪梅[1] 王书民[1] 陈凤英[1] 刘萍[1] 石冲[1] 郑佩 梁红顺 

机构地区：[1]商洛学院化学与化学工程系,商洛726000 [2]中国航天科工集团第二研究院二○一所,西安710065 [3]西安公路研究院,西安710054

出　　处：《分析试验室》2012年第5期96-98,共3页Chinese Journal of Analysis Laboratory

基　　金：商洛学院资助项目(11SKY001)资助

摘　　要：碱性条件下,肉桂酸对Luminol-H2O2-纳米银化学发光体系有较强的增敏作用,据此,结合流动注射技术,建立了测定肉桂酸的新方法。该法线性范围为2.5×10-8～2.5×10-6mol/L,检出限为6.0×10-9mol/L,对1.0×10-7 mol/L的肉桂酸平行测定9次,相对标准偏差为2.5%。该法可用于尿液中肉桂酸的测定。A novel method for the determination of cinnamic acid was developed based on its enhancement effect on the luminol-H2O2-silver nanoparticles chemiluminescence system.Under the optimum conditions,the linear range for the determination of cinnamic acid was 2.5 × 10-8 to 2.5 × 10-6 mol/L with a detection limit of 6.0 × 10-9 mol/L,and the relative standard deviation was 2.5% for 1.0 × 10-7 mol/L cinnamic acid solution in nine repeated measurements.It was successfully applied to the determination of cinnamic acid in human urine.

关 键 词：化学发光 纳米银 鲁米诺 肉桂酸 

分 类 号：O657.3[理学—分析化学]