再采用顶空气相色谱法检测所得苹果多酚纯化物中正己烷、苯、甲苯、对二甲苯、邻二甲苯、苯乙烯等有机溶剂残留均低于检测限。
There were not n-hexane, benzene, toluene and xylene, o-xylene, styrene and other organic solvent residue in the purification of apple polyphenol by the headspace gas chromatograph.
目前的研究多对肝卵圆细胞进行活化、分离纯化、培养鉴定，再通过各种方法将其诱导分化为胰岛细胞。
The present researches were to active, separate, purify, cultivate and identify the HOCs, then all kinds of methods were used to induce it to differentiate into islet cells.
采用弱碱溶解蜂胶再酸化萃取的方法纯化样品，用返滴法测定，以水杨酸作为对照品检测样品中游离酸含量。
Propolis was dissolved in alkalescent condition and filtered. The filtrate was acidified and extracted after a degrease step. The purified sample was finally determined by back-titration.
再对植酸提取后的残余物进行蛋白分离，超滤纯化后获得高纯度的蛋白成品。
The meal residue was dried to extract protein, which was then purified by ultrafiltration to obtain high purity product.
再对植酸提取后的残余物进行蛋白分离，超滤纯化后获得高纯度的蛋白成品。
The meal residue was dried to extract protein, which was then purified by ultrafiltration to obtain high purity product.
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