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前言用N-苯甲酰-N-苯基羟胺(简称BPHA)的氯仿溶液从强酸介质中萃取钛已有多篇报道,但灵敏度不高,如果水相中存在一定量的硫氰酸铵,则以组成为Ti:BPHA:CNS=1:2:1的络合物萃入氯仿中,灵敏度可提高约75%左右。本工作在参考文献的基础上,将这一方法用于六氟化铀水解液中微量钛的测定。除验证并选择最佳的工作条件外,还进行了样品中大量铀和氟以及其它共存元素的影响实验。
Preface N-benzoyl-N-phenyl hydroxylamine (BPHA) in chloroform extracted from strong acid medium has been reported in more than titanium, but the sensitivity is not high, if there is a certain amount of aqueous ammonium thiocyanate, Then the composition of the composition of Ti: BPHA: CNS = 1: 2: 1 complex was extracted into chloroform, the sensitivity can be increased by about 75%. This work is based on the reference, this method is used for the determination of trace titanium in hydrazine hexafluoride hydrolyzate. In addition to verifying and selecting the best working conditions, experiments were carried out on the effects of a large amount of uranium and fluorine and other coexisting elements in the sample.