半导体TiO_2在线光催化还原—流动注射法同时测定NO_2^-和NO_3^-  

Photo- Catalytic Reaction of Nitrate to Nitrite on the TiO_2 and Its Application to Simultaneous Determination of Nitrate and Nitrite

作　　者：马万红[1] 刘志宏[1] 原弘[1] 蔡汝秀[1] 

机构地区：[1]武汉大学化学学院,湖北武汉430072

出　　处：《福州大学学报（自然科学版）》1999年第S1期231-232,共2页Journal of Fuzhou University(Natural Science Edition)

摘　　要：提出一种新的用于同时测定硝酸根和亚硝酸根的流动分光光度法． 方法基于用ＴｉＯ２ 作异相催化剂光诱导还原ＮＯ－２ 催化ＫＢｒＯ３ 氧化甲基橙褪色的反应．It presented a new flow - injection method for the simultaneous determination of ni trateand nitrite spectrophotometrically on the basis of nitrite catalytic fading reaction between methylorgane and KBrO3 , using a photo-induced reduction of nitrateto nitrite by TiO2 materi alas heterogeneouscatalyzer.

关 键 词：流动注射 硝酸根 亚硝酸根 光诱导反应 动力学分析 

分 类 号：O657.3[理学—分析化学]