extract and purify

Methods Alkaline lysis assay was used to extract and purify the plasmid. Plasmid DNA was injected into tumor by microinjection assay.

方法：碱裂解法提取纯化质粒DNA，微量注射法直接将质粒DNA导入体内肿瘤；

Objective: To extract and purify low molecular weight immuno-active earthworm peptides, and to study its effects on the activity of NK cells in vitro.

目的：提取低分子量免疫活性地龙肽，并就其对NK细胞活性的影响进行体外研究。

Objective: To isolate and purify the polysaccharide from the soluble preliminary extract of fructus of Citri medica ( FCM) and analyze the chemical composition of the FCM polysaccharide.

目的：分离与纯化广佛手中提取到的水溶性粗多糖，并分析其相关化学成分。

To extract and purify recombined adenovirus DNA from culture medium, the medium was transferred into a dialysis bag when extensive cell death was observed.

从重组腺病毒转染人胚肾细胞的培养液中提取及纯化病毒DNA。

PurposeTo extract and purify chondroitin sulfate ( chs ) from pig cartilage.

目的从猪鼻软骨中提纯硫酸 软骨素.