MBT-MIBK萃取原子吸收法测定地质样品中的微量金和钯

Determination of Micro Amounts of Gold and Palladium in geological samples by Flame Atomic Absorption Spectrometry after MBTMIBK Extraction

本文研究了在4%王水介质中采用MBT-MIBK体系萃取微量金、钯,并且以有机相喷雾进行火焰原子吸收测定金、钯的方法。该法简便、快速、灵敏,约30种共存离子对测定金、钯无干扰,该法已成功地应用于地质样品中微量金和钯的测定。

The extraction of micro amounts of Au and Pd was studied by using MBT-MIBK system in the medium of HCl+HNO_3(3+1) (4%), and the Au and Pd extracted into the organic phase were determined directly by FAAS. This method is simple, rapid and sensitive,and about 30 coexisting ions do not interfere with the determination. This method was used for the determination of micro amounts of Au and Pd in geological samples successfully.