苯基荧光酮分光光度法测定微量钼(Ⅵ)  

Determination of Micro-Molybdenum(Ⅵ) by Spectrophotometry with Phenylfluorone

作　　者：王涛[1] 李敏[1] 陈虹[1] 

机构地区：[1]四川理工学院材料与化学工程学院,四川自贡643000

出　　处：《福建分析测试》2011年第1期20-22,共3页Fujian Analysis & Testing

摘　　要：研究了在表面活性剂CTMAB存在下,1.5～2.5moL/L硫酸介质中显色剂苯基荧光酮(苯芴酮)与钼(Ⅵ)的分光光度性质及反应条件,其最大吸收波长λmax=523nm,检测钼(Ⅵ)范围为0～20μg/25mL,符合朗伯-比尔定律,相关系数为R=0.9988。并试验了多种离子的干扰情况,建立了分光光度法测定微量钼的高灵敏度、较高选择性的方法,并取得了满意结果。The reaction of molybdenum （ VI ） with phenylfluorone in the presence of cetyltrimethyl ammonium bromide （CTMAB） has been investigated spectrophotometrie properties and reaction conditions. In an acid medium 1.5 ~ 2.5moL/L sulfuric acid, a redpurple complex is obtained with maximum absorption at 523nm. Beer＇s law is obeyed in the range of 0 ~ 20 μg/25mL and the correlation coefficient was 0.9988.Most other metal ions did not interfere. This method has been used directly for the determination of Molybdenum with satisfactory results.

关 键 词：溴化十六烷基三甲胺(CTMAB) 分光光度法 苯基荧光酮 钼酸铵 

分 类 号：O657.32[理学—分析化学]