确定了萃取和反萃取的条件，考查了多种共存元素的分离情况，并在此基础上，制定了岩石矿物中超微量铱的简便、快速的测定方法。
The separation of several co-existent elements was investigated and easy and quick determination method of super trace Iridium was established based on it.
萃取及反萃取的理论级数分别为8级和9级。
Extraction and stripping Numbers of theoretic stages are 8 and 9 respectively.
用TTA萃取分离铀、锆时，TTA对锆的螯合作用很强，硝酸和盐酸的浓酸溶液并不能破坏它们之间的整合，即对锆的反萃取非常困难。
When TTA is used to extract zirconium in uranium, the combination of zirconium and TTA is very strong, the concentrated acid of nitric acid and hydrochloric acid can not destroy their combination.
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