1) specific activity
比活
1.
3% and the specific activity was 1 650.
L-1CuCl2/50 mL红细胞,55~65℃热变性15 min,有效的提高了SOD比活。
2.
The specific activity of refolding proteins obtained from the two methods was judged.
方法采用离子交换柱吸附变性包涵体蛋白,用含有复性剂的洗脱液洗脱复性,所得蛋白质比活和稀释复性法所得比活比较。
3.
After isolation and purification of four steps, specific activity of UGPase from Apocynaceae cell is 204 9 U/mg.
经 4步分离纯化的Apocynaceae植物培养细胞尿苷二磷酸葡萄糖焦磷酸化酶(UGPase)的比活为 2 0 4 9U mg ,与细胞粗提液相比 ,活力提高 97倍 ,活力回收率为 2 1 %,可直接用于尿苷二磷酸葡萄糖 (UDPG)的合成 ,并且储存稳定性很好 。
2) specific bioactivity
比活
1.
The activity and the specific bioactivity were up to 1.
35×104U·mL-1,比活为3。
3) 137Cs activities
137Cs比活度
1.
137Cs activities in purple surface soil on grass land have a good relationship with the medium grain size(d50)by sieving method,but do not have a defined relationship with the medium grain size(d50)by normal method.
紫色土草地表层土壤的137Cs比活度与样品的筛分中值粒径(d50)相关较好,而与颗分中值粒径没有明显的相关性。
4) specific activity
比活力
1.
Its specific activity was 124.
用弗氏链霉菌Ｓ－２２１变种的羽毛粉发酵液离心后上清液经８０％浓度乙醇沉淀离心提取的角蛋白酶，酶比活力１２４。
2.
The results shown that enzyme activity is effected by bacteria and culture time, and not by inducer; the distribution of enzyme produced by the two strains of bacteria is mainly in piroplasmic and intercellular; the specific activity in piroplasmic of Pseudomonas, sp.
ＤＣＰ－１和Ｐｓｅｕｄｏｍｏｎａｓｓｐ，ＤＣＰ－２中二氯酚降解酶活性及定域进行了测定，结果表明该酶的活力与菌种、培养时间等因素有关，与诱导物的关系不显著；酶主要定域在膜周及膜内；酶的活力在两种菌中的水平相当；酶的比活力在ＣＤＰ－１的膜周处表现出相当高的水平。
3.
The results showed that if the insects were exposed to CA for 6h or 12 h,the specific activity of ACP increased by 6.
结果显示,高浓度CO2密闭处理药材甲老熟幼虫6 h和12 h,ACP比活力分别升高6。
6) Activity ratio
活度比
1.
such as Oxidationreduction environment of agaifersystem,degree of rock retarding (adsorbing)radionuclides ingroundwater etc according to natural radionuclides activity ratio relative to ￣(222)Rn, retardationfactor,dlstrobution coefficlent and radionuclide concentration in the groundwater.
本文通过地下水中天然放射性核素的活度比值、阻滞系数、分配系数以及核素浓度的研究，阐明了含水系统的氧化还原环境，岩石对水中放射性核素的阻滞（吸附）作用等地下水环境问题。
2.
The paper introduces the method of dating the zero time by utilizing the activity ratio of two fission products in no-isobaric or parent-daughter fission products in isobaric.
文章介绍利用不同质量链上两种裂变产物或同一质量链上母子体裂变产物的活度比来确定CT- BT国际比对样品零时的方法。
补充资料：高比活度
分子式：
CAS号：
性质：指单位质量的放射源具有较高的放射性活度。通常表示某放射源中稳定同位素或其他物质的含量很少。它能满足示踪实验的要求。在满足一定条件下，反应堆可生产出高比活度放射源。
CAS号：
性质：指单位质量的放射源具有较高的放射性活度。通常表示某放射源中稳定同位素或其他物质的含量很少。它能满足示踪实验的要求。在满足一定条件下，反应堆可生产出高比活度放射源。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条