ultramicro-determination
... ultramicrochemistry 超微量化学 ultramicro-determination 超微量测定 ultramicrometer 超测微计 ...
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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.
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