studies on extracting and purifying edible pigment from natural annatto 天然红木食用色素的提取与纯化研究
the method we used to extract and purify the water-soluble one was somewhat different from that we used in liposoluble pdne 其提取步骤和脂溶性物质pdne的提取分离稍有差别。
the nuclei and nucleoli were extracted and purified and the sclerotia were induced from fuligo septica phaneroplasmodium, and then they were observed under tem 从煤绒菌显型原质团中提纯细胞核、核仁,诱导原质团形成菌核,并在透射电镜下观察。
after the produre of extracting and purifying immunogen, the production of monoclonal antibodies was carried out . three balb / c mice, 6-week old, were used for immunization 首先选择六周龄的balb/c小鼠三只,按照免疫方案进行尾静脉和皮下的注射。
the first part of our experiment is to extract and purify the total rna from the human liver tissue in the condition without rnase and to identify its integrity and purity 本研究第一部分包括肝组织中总rna的分离提取;rt-pcr扩增出血管抑素基因。首先,采集术后新鲜肝组织,并于无rnase的条件下分离纯化总rna。