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本文研究了以MIBK为萃取剂、TMK为显色剂的载体萃取光度法,并用于测定矿石中的痕量金。本法比通常的TMK萃取光度法灵敏度高2倍以上,有机溶剂的用量少(0.2ml),提高了有色络合物的稳定性,简化了测定的步骤。可用于测定矿石中0.02g/t以上的金。
In this paper, the carrier extraction spectrophotometry with MIBK as extraction reagent and TMK as chromogenic reagent was studied and used for the determination of trace gold in ore. This method is more than twice as sensitive as the usual TMK extraction spectrophotometry with a small amount of organic solvent (0.2 ml), which improves the stability of the colored complex and simplifies the determination. Can be used for the determination of ore more than 0.02g / t gold.