采用蔗糖密度梯度离心法分离肝脏内质网。
Hepatic endoplasmic reticulum was isolated by differential centrifugation with sucrose density gradient.
用改进的不连续蔗糖密度梯度离心法分离到五条带。
Five zones were separated by improved discontinuous sucrose gradient centrifugation.
将腮腺炎病毒S79株培养液用中空纤维超滤器进行浓缩，经PEG沉淀后，采用蔗糖密度梯度离心法纯化抗原；
The tissue culture of mumps virus S79 strain was purified by ultrafiltration on hollow fiber, PEG precipitation and density gradient ultracentrifugation.
将腮腺炎病毒S79株培养液用中空纤维超滤器进行浓缩，经PEG沉淀后，采用蔗糖密度梯度离心法纯化抗原；
The tissue culture of mumps virus S79 strain was purified by ultrafiltration on hollow fiber, PEG precipitation and density gradient ultracentrifugation.
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