离子缔合物-萃取荧光光度法测定水中阴离子表面活性剂  

Analysis of anionic surfactants in environmental water samples by fluorophotometry with rhodamine B

作　　者：谢志海[1] 郎惠云[1] 王昕[1] 齐雁[1] 

机构地区：[1]西北大学化学系,西安710069

出　　处：《分析试验室》2001年第5期47-48,共2页Chinese Journal of Analysis Laboratory

摘　　要：在 0 .2 5 mol/L H2 SO4 溶液中 ,罗丹明 B与阴离子表面活性剂形成离子缔合物 ,氯仿萃取后 ,于 5 5 0 nm处激发 ,荧光波长为 60 0 nm,对于十二烷基硫酸钠的线性范围为 0 .0 2 5～ 0 .4mg/L,RSD<2 .6%。方法可用于河水及生活废水中 1 0 -7～ 1 0 -6mol/LAnionic surfactants were determined by a spectrofluorimetric method after liquid liquid extraction with rhodamine B in 0.25 mol/L sulfuric acid medium. Fluorescence measurements were made at 550nm for λ ex and 600 nm λ em . The linear rang is 0.025～0.4 mg/L for dodecylsulfate with recovery rate of 97.0%～103%, and RSD<2.6%. The method was successfully applied to the determination of anionic surfactants in environmental water samples.

关 键 词：阴离子表面活性剂 罗丹明B 荧光光度法 水 污染物 分析 测定 

分 类 号：X132[环境科学与工程—环境科学] X832