低压离子色谱分离化学发光检测水中痕量硫离子  

On-line Determination of Trace Sulfide in Water by Low-pressure Ion Chromatography with Chemiluminescence Detection

作　　者：游水英[1] 周光明[1] 沈祥[1] 黄成[1] 王莉[1] 

机构地区：[1]西南大学化学化工学院,重庆400715

出　　处：《西南师范大学学报（自然科学版）》2006年第2期88-91,共4页Journal of Southwest China Normal University(Natural Science Edition)

基　　金：重庆市自然科学基金资助项目(CSTC-2004BB7087).

摘　　要：结合流动注射技术,将低压离子色谱与化学发光联用检测痕量硫离子．在最佳实验条件下,硫离子浓度在 4．0×10-2～1．0 mg／L范围内与发光强度呈良好的线性关系;检测限(3σ)为5．0×10-3mg／L;相对标准偏差为 0．5％(n=11,0．10 mg／L S2-)．该方法用于环境水样中S2-的测定,结果令人满意．The separation and determination of trace sulfide in water, combined with flow injection analysis is carried out by low ion chromatography with chemiluminescence detection. It is based on the enhancement of CL reaction of KIO4 with Luminol. The relationship between the CL intensity and the concentration of sulfide is linear in the range of 4.0×10^-2～1.0mg/L. The relative standard deviation is 0.5% （n ：11, c=0.10 mg/L）. The detection limit is 5.0×10^-3mg/L. The method has been applied to the determination of sulfide in water with satisfactory results.

关 键 词：低压离子色谱 化学发光 联用技术 硫离子 

分 类 号：O657[理学—分析化学]