流动注射分光光度法测定水中硫化物  

To Detect Sulfide in Water with Flow Injection Spectrophotometry

作　　者：孙威[1] 杨广利[1] 何滨宇[1] 封龙[1] 

机构地区：[1]淮安市环境监测中心站,江苏淮安223001

出　　处：《环境监测管理与技术》2005年第6期32-33,共2页The Administration and Technique of Environmental Monitoring

摘　　要：采用流动注射分光光度法测定水中的硫化物,在酸化条件下,通过在线蒸馏释放出H2S气体,在酸性介质中与对氨基二甲基苯胺和三氯化铁反应,形成亚甲基蓝,于660 nm处比色测定。方法检出限为0.004 mg/L,精密度和准确度均较好,操作简便,能满足大批量水样及时准确分析的需求。To detect sulfide in water with flow injection spectrophotometry. Under acid condition, H2S gas was released and reacted with amino-dimethyl-toluamide and ferro trichloride to get methylene blue, and detected on 660 nm. This method＇s detection limit was 0. 004 mg/L, accuracy was good, and was suitable for great amount water sample＇s detection.

关 键 词：硫化物 流动注射 分光光度法 水质 

分 类 号：O657.32[理学—分析化学]