(elution)又称洗脱。离子交换提取、纯化过程中的一个重要操作步骤,其目的是将已吸附在树脂(负载树脂或饱和树脂)上的金属(如铀)由树脂相淋洗到水溶液中。
n. elution
misc. drip washing
... 云下洗脱;洗除;洗脱;wash out 淋洗;洗脱;elution 梯度洗脱;程序变溶剂洗脱(solvent programming elution);gradie…… ...
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Below 30cm soil layer, the heavy metal's content increases,indicating that the leached heavy metal from the top soil are adsorbed or precipitated in thesubstrate again.
30cm以下土层的重金属含量上升,说明在表层被淋洗出来的重金属在底层发生了再沉淀。
参考来源 - 重金属污染滨海盐渍土壤淋洗改良研究Drip irrigation is not able to generate deep permeability. The salt in soil can not be removed by leaching of irrigation water.
滴灌一般不产生深层渗透,难以利用灌溉水淋洗盐分,盐分仅在土体中转移而无法消除。
参考来源 - 膜下滴灌棉田水盐平衡及淋盐需水量研究·2,447,543篇论文数据,部分数据来源于NoteExpress
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