动力学光度法测定甲醛  

Kinetic Spectrophotometric Determination of Formaldehyde

作　　者：王术皓[1] 杜凌云[1] 张爱梅[1] 

机构地区：[1]聊城师范学院化学系,聊城252059

出　　处：《分析化学》2000年第5期628-630,共3页Chinese Journal of Analytical Chemistry

摘　　要：在室温及酸性条件下，甲醛对溴酸钾氧化乙基橙的反应具有显著的促进作用，且反应具有一定的诱导期。通过测量诱导期建立了测定甲醛的动力学分析新方法，测定甲醛的线性范围为0．10－1．5mg/L，检测限为0．05mg／L。利用此法测定了废水中的甲醛，结果满意。A simple and sensitive kinetic spectrophotometric method for the determination of trace formaldehyde based on its kinetic effect on the oxidation reaction of ethyl orangr by bromate ion in acidic medium at room temperature is reported. The linear range for formaldehye is 0. 10 ~ 1 .5 mg/L, and the detection limit is 0.05 mg/L. The method is applied to the determination of formaldehyde in waste water with satisfactory results.

关 键 词：甲醛 测定 动力学光度法 废水 

分 类 号：O657.3[理学—分析化学]