碱性品红紫外光度法测定水中亚硝酸盐氮  

SUTDY ON THE UV SPECTROPHOTOMETRIC DETERMINATION OF NO_2^--N IN WATER WITH MAGENTA

作　　者：李党生[1] 李桂敏[2] 朱惠斌[1] 

机构地区：[1]黄河水利职业技术学院,开封475001 [2]河南大学化学化工学院,开封475001

出　　处：《环境工程》2002年第2期61-63,共3页Environmental Engineering

基　　金：河南省自然科学基金资助项目 (0 0 4 0 330 0 )

摘　　要：研究了碱性品红与亚硝酸根在硫酸 (或盐酸 )介质中的反应 ,建立了测定亚硝酸盐氮的新方法。方法的线性范围为 0～ 1 6 μg mL ,表观摩尔系数为 1 12× 10 4 L mol·cm。用于地表水、地下水的测定 。The reaction of magenta and nitrite in sulfuric acid medium was studied.A new method on determination of NO - 2 N was found.The linear range for NO - 2 N is 0～1.6 μg/mL.The apparent molar absorptivity is 1.12×10 4 L/mol·cm.The method has been used to determine surface water and ground water.The results obtained are quite satisfactory and are in agreement with those obtained by the naphthylethy lenediamine hydrochloride colorimetric method.

关 键 词：紫外光度法 亚硝酸盐氮 碱性品红 重氮化 水质监测 

分 类 号：X830.2[环境科学与工程—环境工程]