Hirsch J G, Fedorko M E
J Cell Biol. 1968 Sep;38(3):615-27. doi: 10.1083/jcb.38.3.615.
Human leukocytes in suspension or in monolayer cultures have been processed for electron microscopy by fixation in a freshly made cold mixture of glutaraldehyde and osmium tetroxide and by "postfixation" in uranyl acetate. Simultaneous exposure to glutaraldehyde and osmium tetroxide eliminates many of the shortcomings seen when either of these agents is used alone as the initial fixative. Specimens are processed to the stage of dehydration as single cell suspensions or as very small clumps to assure rapid penetration of fixatives and efficient washing. The technique is rapid and reproducible. Electron micrographs presented in this report illustrate the ultrastructural features of human white cells prepared by this method.
用新鲜配制的冷戊二醛和四氧化锇混合物固定,并在醋酸铀中进行“后固定”。同时暴露于戊二醛和四氧化锇可消除单独使用这两种试剂作为初始固定剂时出现的许多缺点。将标本作为单细胞悬液或非常小的团块处理至脱水阶段,以确保固定剂快速渗透和有效洗涤。该技术快速且可重复。本报告中的电子显微照片展示了用该方法制备的人白细胞的超微结构特征。