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本文研究了各种离子交换树脂对Ａｕ（ＣＮ）￣－＿２和其它金属氰化物的选择性。通过对实验结果和树脂结构的比较，从而确定了控制选择性的因素。得出了聚合物基体的亲水性和离子密度（每单位体积离子基团的数目）在决定树脂选择性中起着重要作用的结论。低的亲水性和低离子密度可增加对金的选择性，相反，则有利于对铁和铜等贱金属的吸附。具有三乙基铵基团的树脂对于单价和二价金属氰化结合物（金、镍和锌）的选择性优于多价离子（铜和铁）。
This article studies the selectivity of various ion exchange resins to Au (CN) ~-_2 and other metal cyanides. By comparing the experimental results with the resin structure, the factors that control the selectivity were determined. It is concluded that the hydrophilicity and ionic density (number of ionic groups per unit volume) of the polymer matrix play an important role in determining resin selectivity. Low hydrophilicity and low ionic density increase the selectivity to gold, but rather, favor the adsorption of base metals such as iron and copper. Resins with triethylammonium groups are superior to polyvalent ions (copper and iron) for selectivity to monovalent and divalent metal cyanide conjugates (gold, nickel and zinc).