测滴度并用氯化铯梯度离心纯化备用。
The titer was assayed and CsC1 density gradient centrifugation and purification were applied.
方法采用链霉蛋白酶消化、间断密度梯度离心纯化大鼠胃黏膜壁细胞。
Methods Rat gastric parietal cells were isolated by pronase digestion and purified by discontinuous density-gradient centrifugation.
目的采用离心淘洗技术分离纯化大鼠肝非实质细胞亚群。
Objective In order to isolate and purify nonparenchymal cells subgroups from rat liver, centrifugal elutriation technique was applied.
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