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Determination of eutectoid content of TiO2 in Ni-TiO2 nano-composite deposit with spectrophotometry
Author(s): 
Pages: 55-57
Year: Issue:  10
Journal: ELECTROPLATING & FINISHING

Keyword:  分光光度法纳米复合镀层二安替比林甲烷Ni-TiO2共析量;
Abstract: 在酸性介质中,钛与二安替比林甲烷可生成络合物Ti-DAM.提出采用DAM为显色剂、硫酸-盐酸为显色介质,利用分光光度法测定了Ni-TiO2纳米复合镀层中TiO2的共析量.确定了最佳测定波长为390 nm.通过研究显色时间、DAM及盐酸用量、共存离子等对吸光度的影响,得出适宜的显色条件.经测定表明,工作曲线在钛含量为0~360μg/(50 mL)范围内,有较好的线性关系,其表观摩尔吸光系数为8.813×103 L/(mol·cm).对样品进行了回收测试,钛的回收率在99.7%~104.6%之间.同时对TiO2含量分光光度法分析结果与EDS测得值进行了比较.
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