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Study on the Colour Reaction of Titanium with 4,5-Dibromo-2-nitrophenylfouorone (Br-ONPF)-CTMAB and Its Application
Author(s): 
Pages: 498-500
Year: Issue:  5
Journal: ACTA SCIENTIARUM NATURALIUM UNIVERSITATIS NEIMONGOL

Keyword:  45-二溴邻硝基苯基荧光酮显色反应;
Abstract: 研究了钛-4,5-二溴邻硝基苯基荧光酮(Br-ONPF)-溴化十六烷基三甲基胺(CTMAB)配合物的最佳显色反应条件.在硫酸介质中钛与试剂形成1∶4的配合物,其最大吸收波长λmax=584 nm,配合物的表观摩尔吸光系数为ε=1.03×105 L.mol-1.cm-1.钛含量在0~7 μg/25 ml范围内符合比尔定律,方法选择性较好,在拟定的条件下可直接用于钢样中微量钛的测定,结果满意.
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