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ultra-centrifugal sedimentation
释义
ultra-centrifugal sedimentation
Encyclopedia
理学
超离心沉降
释
ultra-centrifugal sedimentation
超离心沉降
测量稀溶液或分散液中溶质或分散颗粒在约300转/秒的超离心作用下达到沉降的方法。对于分散相粒子很小的系统(纳米级),在重力场中的沉降速度非常慢,粒子的扩散作用不容忽视。在离心力场中离心力比重力大得多,可使纳米级小粒子的沉降速度大大加快。
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