节点文献
低压离子色谱分离化学发光在线检测NO2-和S2-
Online Determination of NO2-and S2-by Low-pressure Ion Chromatography Separation Coupled with Chemiluminescence Detection
【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。
【Abstract】 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-;
【Key words】 low-pressure ion chromatography; chemiluminescence; on-line determination; nitrite and sulphide;
【Key words】 low-pressure ion chromatography; chemiluminescence; on-line determination; nitrite and sulphide;
【基金】 重庆市自然科学基金项目资助(CSTC-2004BB7087)
- 【文献出处】 环境科学与技术 ,Environmental Science & Technology , 编辑部邮箱 ,2006年11期
- 【分类号】X831
- 【被引频次】5
- 【下载频次】148