摘要
利用苯基荧光酮类试剂在表面活性剂存在下与高价金属离子形成三元胶柬络合物的显色反应具有灵敏度高、选择性好、反应条件宽等特点，系统地研究了二溴邻硝基苯基荧光酮在微乳液条件下测定Pd（Ⅱ）的显色条件。通过试验确定了体系酸度、显色剂用量、反应时间、试剂加入顺序等实验条件。利用该方法对人工合成样品进行测定，测定结果的相对标准偏差不大于2．45％（n=6），加标回收率为92．5％～98．1％。
DBONPF reacted with metal ion to form ternary complex with high sensitivity, better selection, etc. On the basis chromogenlc conditions of DBONPF reaction with Pd（Ⅱ） in microemulsion was researched. System acid, usage of color reagent, reaction time and reagent addtion order were confirmed. Two samples were detected by the method, the relative standard deviations were 2.17% -2.45% （n =6） and recoveries were 92.5% -98.1%.
出处
《化学分析计量》
CAS
2008年第2期37-39,共3页
Chemical Analysis And Meterage
