反相流动注射-化学发光法测定苯胺  

Reverse flow injection-chemiluminescence determination of aniline

作　　者：张磊[1] 李薇[1] 范顺利[1] 

机构地区：[1]河南师范大学化学与环境科学学院河南省高等学校环境科学与工程重点实验室,新乡453002

出　　处：《分析试验室》2004年第5期21-23,共3页Chinese Journal of Analysis Laboratory

摘　　要：在酸性介质中,苯胺与过量亚硝酸盐重氮化,剩余亚硝酸盐快速氧化亚铁氰化钾,生成的铁氰化钾与鲁米诺发生化学发光反应。据此,建立了反相流动注射 化学发光法测定苯胺的新方法。方法的线性范围为0 070～10.0mg L,检出限为0 03mg L,相对标准偏差(n=11,ρ=1.0mg L)为2 0%。方法已用于环境水样中苯胺的测定。A new flow-injection chemiluminescence (CL) method for the determination of aniline was described. The method was based on the reaction between aniline and nitrite and the CL reaction of luminol with (K_3Fe(CN)_6) which was produced by the reaction between extra nitrite and K_4Fe(CN)_6. The linear range was 0.070～10.0 mg/L for aniline with the detection limit of 0.03 mg/L. The relative standard deviation (n=11, ρ=1.00 mg/L) was 2.0%. The method was applied to the determination of trace aniline in environmental water samples with satisfactory results.

关 键 词：反相流动注射 化学发光 苯胺 

分 类 号：O657.3[理学—分析化学]