酶的比活力（specific activity）代表酶制剂的纯度。
...，利用其具有的网状结构的凝胶的分子筛作用，按照分子大小分离蛋白质或其它分子混合物的层析技术。 酶的比活力（specific activity ）：代表酶的纯度，并用每毫克蛋白质所含的酶活力单位数表示。且对同一种酶来说，比活力越大，表示酶的纯度越高。
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酶的比活力 enzymatic compare energy ; Specific activity
酶比活力 specific activity ; enzymatic specific activity
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高比活力 higher specific activity
胰蛋白酶比活力 BAEE
植酸酶比活力 activity of phytase
活力比萨男 Vigor The Pizza Boy
心内膜活力比值 endocardial viability rate ; EVR
合成水解活力比 ratio of synthesis to hydrolysis
The ALP was 105.08-fold purified. The specific activity was 4031.15unit/mg protein.3.
该酶提纯倍数为105.08，比活力达到4031.15U/mg。
参考来源 - 白鲢肠碱性磷酸酶的分离纯化及其性质研究The two steps give overall purification of28-fold for chitinase activity, and the yield of the purified chitinase was 3.4%, with special activity of 4.14U·mg-1.
回收率3.4%,纯化28 倍,比活力为4.14U·mg~(-1)。
参考来源 - 淡紫拟青霉产几丁质酶条件和几丁质酶生化特性研究The activity ratio of carboxylesterase was 0.3693 after treatment in 12 hours. When the time was longer, the active ratio was increased significantly.
对羧酸酯酶有可逆性抑制作用，处理12h后，其羧酸酯酶的比活力为0.3693，但随着时间的增加，羧酸酯酶的比活力明显开始上升，到48h时甚至超过扬州大学硕士学位论文了正常水平，达到了1.129。
参考来源 - 印楝素对水稻二化螟的生物活性、作用机制和应用技术研究The ratio of PK-A/PK-C was increased from 0.342 to 1.849 (calculated as activity) or from 0.210 to 0.897 (calculated as specific activity).
PK-A/PK-C的活力比值则从0.342增加到1.849,比活力比值从0.210增加到0.897。
参考来源 - 视黄酸对人肝癌细胞蛋白激酶的影响·2,447,543篇论文数据，部分数据来源于NoteExpress
根据表中信息，计算每个纯化步骤酶的比活力。
From the information given in the table calculate the specific activity of the enzyme solution after each purification procedure.
比较了孔径大小对酶固定化量及比活力的影响。
The effects of pore size on the specific activity and on the amount of immobilized laccase were studied.
用吸附法固定脂肪酶时，膜材料的亲疏水性对固定化酶的量、比活力和活力稳定性等有很大影响。
The difference of hydrophobic and hydrophilic performance of membrane has great effect on the loading, the activity and the stability of lipase immobilized with adsorption.
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