罗丹明6G用作测定亚硝酸根的新选择性试剂  

Rhodamine 6G as a reagent for spectrophotometric determination of nitrite in aquous solution

作　　者：蔡亚岐[1] 胡之德[1] 

机构地区：[1]兰州大学化学系

出　　处：《化学试剂》1989年第2期73-74,70,共3页Chemical Reagents

摘　　要：研究了罗丹明6G 与亚硝酸根在盐酸介质中的亚硝化反应,并由此建立了一个简单、快速、选择性好的测定亚硝酸根的新方法。方法对比尔定律的适用范围是0～3.0μgNO(?)/ml。本法用于污水中亚硝酸根的测定,结果良好。A fairly selective and simple spectrophoto-metric method for the determination of tracenitrite in aqueous solution is developed.Niuritereacts with rhodamine 6 G in acidic medium toform a colored product which is measured at 445nm.Beer's law is obeyed over the concentrationrange of 0～3.0μg/ml.The conditional molarabsorptivity is 1.2×10~4l·mol^(-1)·cm^(-1).

关 键 词：亚硝酸根 罗丹明6G 亚硝化 污水 

分 类 号：O613.610.6[理学—无机化学]