低压离子色谱柱后偶合化学发光测定蔬菜中碘离子  

Determination of Iodine in Vegetable by Low-Pressure Ion Chromatography with Coupled Chemiluminescence Detection

作　　者：高智席[1] 吴艳红[1] 曾启华[1] 周光明[2] 

机构地区：[1]遵义师范学院化学系,贵州遵义563002 [2]西南大学化学化工学院,重庆北碚400715

出　　处：《化学世界》2010年第2期84-86,共3页Chemical World

基　　金：贵州省教育厅自然科学青年项目(黔教科2007072);遵义市科合社字[2008]26号

摘　　要：以NaNO3作洗脱液，碘离子经低压离子色谱柱分离与KIO4反应后，再与鲁米诺发生化学发光。经试验测定碘离子浓度在8．0×10^-5～5．0×10^-8／mL范围内与发光强度呈良好的线性关系；检出限为8．0×10^-9g／mL（3σ）；相对标准偏差为0．8％。NaNO3 was used as eluent. I^- was separated by low-pressure ion chromatography, and reacted with KIO4. The product reacted further with luminol to produce chemiluminescence. Under the best conditions, the linear range was 8.0×10^-5～5.0×10^-8/mL, the detection limit was 8.0×10^-9g/mL, and the relative standard derivation was 0.8 %.

关 键 词：离子色谱 化学发光 蔬菜 碘离子 

分 类 号：O657.3[理学—分析化学]