3 . to study physical and chemical property of dnaase the purified dnaase reacted with circular pbv220 - y - inf for an hour at 37 , then the producetion was detected by 1 % agrose gel 双胸蚓组织中dna酶的酶学性质研究将纯化的dna酶分别与环状pbv220 - ? inf37反应1小时后，用1的琼脂糖凝胶电泳对其反应产物进行观察。
Sepharose affinity chromatography . the apparent molecular weight of purified ghrp - scu - pa - 32k was 33kd by sds - page and mass spectrometry and its specific activity was 150000iu mg protein , according to fibrin plate determination 经锌离子螯合亲和柱纯化的产物， sds - page显示为单一蛋白条带，分子量为33kd ，质谱法测定分子量也为33kd 。
The substance with antibacteria action obtained from forest frog is made up of alanine , aminoacetic acid , leucine , isoleucine , proline , aminoglutaric acid , threonine , serine , lysine . the substance with antibacteria action is a kind of poly peptide with a micromolecul 纯化的林蛙皮肤抗菌活性物质经尿素? sds ? page电泳分析，表现为一条带，分子量约为6 . 28kda 。
The fluorescence spectra of brown algae thylakoid membrane and ps i complex varied from higher plants , they had no fluorescence emission maximum at 730 nm . we concluded that 730 nm fluorescence was no more a symbol of ps i 在裙带菜纯化的类囊体膜和ps复合物的荧光光谱中，均未发现属于ps的730nm的荧光发射峰，指出730nm荧光峰不能作为ps的表征。
In 1994 , li et al isolated agmatine from cow brain . like clonidine , agmatine is an endogenous agonist at imidazoline receptors ( ir ) and a noncatecholamine ligand at ( ai - adrenergic receptors ( ( x2 - ar ) 胍丁胺( agmatine )是1994年li等从牛脑中分离纯化的一种内源性可乐定置换物质( clonidinedisplacingsubstance ， cds ) ，它可能作为一种新型的神经递质或调质。
Furthermore , the growth of escherichia coli tg1 and staphyloccus aureur atcc25923 were not under the influence of apss . the switching pulse induced a perceptible sustained transmembrane current on the planar lipid bilayer after unpurified aps added 机理研究表明未经纯化的aps作用于脂质平面膜，可以形成跨膜电流，提示活性成分可能通过改变脂质双层膜通透性抗菌。
This 40 - residue toxin with molecular weight of 4440 . 18da shows little sequence identity with other spider toxins . another neurotoxic peptide , named huwentoxin - vh , has been purified from the venom of the same spider 此外从虎纹捕鸟蛛( selenocosmiahuwena )毒液中纯化的另一种新型肤类神经毒素，虎纹捕鸟蛛毒素一vii ( huwentoxi仆vii ， hwtx一vll )的化学性质与基本生物学功能。
Huwentoxin - i ( hwtx - i ) is a polypeptide neurotoxin isolated from the crude venom of chinese bird spider selenocosmia huwena , a chinese bird - hunting spider defined as a new species of the family selenocosmia . its molecular weight is 3750 dalton 虎纹捕鸟蛛毒素- ( huwentoxin - ，简成hwtx - )是从我国捕鸟蛛新种虎纹捕鸟蛛( selenocosmiahuwena )粗毒中分离纯化的一种多肽类神经毒素。
The reverse osmosis device is an equipment to purify the saline water with the action of pressure difference of semi premeable membrame . it is called reverse osmosis , as it is counter to natural penetration direction . different materials have different osmotic pressures 反渗透装置是利用半透膜在压力差的作用下使含盐水脱盐纯化的设备，它自然渗透的方向相反，故称为反渗透，亦称逆渗透。
Glycoprotein bands recovered were detected by gelcodeglycoprotein staining kit , and the result showed that recovery rate reached 50 percent , that the quantity of glycoprotein once purified from sds - gel , was enough to be used in ms , hplc , protein sequence analysis , glycan analysis , and characterization so on 从sds胶上纯化的茶树叶糖肽鉴定结果看，茶树叶糖蛋白的sds胶上纯化回收率达50左右。
