Immobilized metal-ions affinity (IMA) is used widely by the specific interactions between proteins in solution and metal ions fixed to the solid support.

金属离子吸附技术(IMA)利用固定相的金属离子与蛋白表面的组氨酸等残基配位结合有广泛应用。

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There is a repulsive force, the attractive force between ions of opposite charge is offset by a repulsive force due to electron cloud interactions.

有一个斥力时,存在于电性不同的离子间的引力,是可以被抵消的，因为电子可以相互影响。

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