The carbon nano-tubes were pured by oxidation method, which was byproduct in coal-coking industry. X-ray diffraction and transmission electron microscope were used to determine the sizes and morphology of carbon nano-tubes. 采用氧化法提纯了煤焦化工业副产品中的纳米碳管,采用X射线衍射法对纳米碳管的结构进行了研究,透射电镜研究了纳米碳管的形貌。
Conclusion High pured MSCs can be obtained by Percoll gradient centrifuging and adherent method. 结论利用Percoll密度梯度离心法结合贴壁法可以获得比较纯的MSCs;
Methods first, to acquire the highly pured glomeruli by three steps grads filtrated net; 方法采用三步梯度筛网法,先获得较高纯度的肾血管球,再应用肾血管球外植法体外培养肾微血管内皮细胞。
Paper chromatography and gel column chromatography were used to determine the purity of β-glucan pured, and it proved that the polysaccharide showed homogenous. 纸层析、凝胶柱层析鉴定所得多糖的纯度,表明其为均一物质。