低压离子色谱分离化学发光在线检测NO_2^-和S^(2-)  

Online Determination of NO_2^-and S^(2-)by Low-pressure Ion Chromatography Separation Coupled with Chemiluminescence Detection

作　　者：游水英[1] 周光明[1] 沈祥[1] 

机构地区：[1]西南大学化学化工学院,重庆400715

出　　处：《环境科学与技术》2006年第11期46-47,61,共3页Environmental Science & Technology

基　　金：重庆市自然科学基金项目资助(CSTC-2004BB7087)

摘　　要：研究了低压离子色谱分离-柱后鲁米诺化学发光检测方法,并分离测定了NO2-和S2-,以碳酸钠作为洗脱液,Lumi-nol-H2O2-NO2(-或S2-)作为化学发光检测体系,对NO2-和S2-两种阴离子进行在线检测。测定的线性范围分别为NO2-:5.0×10-8～10-6g/mL;S2-:1.0×10-8～6.0×10-7g/mL。检测限NO2-为:3.0×10-9g/mL,S2-为:1.4×10-9g/mL。该方法用于水样中NO2-和S2-含量的测定,结果满意。The determination of NO2-and S2-related to the separation conducted on an anion separation column by mobile phases of Na2CO3 and the Luminol-H2O2-NO2-(S2-)system used for flow injection chemiluminescence analysis.The paper concluded that linear range and detection limit obtained under the optimum condition were satisfactory and the method could be applied to on-line determination of nitrite and sulfide in water.

关 键 词：低压离子色谱 化学发光 在线检测 NO2和S2^- 

分 类 号：X84[环境科学与工程—环境工程]