免疫电镜技术中酶标记方法的选择,一般以结合物活性强、灵敏度高的PAP法为佳。在定位包埋的方法中,我们采用过装满包埋剂胶囊或塑料小管倒扣在选择部位上的对扣法;以及塑料薄膜粘贴法,对扣法文献报道尽管有效,但组织切片有时不易与玻片分离,容易损伤组织细胞的超微结构。而塑料薄膜粘贴法能克服上述缺点,我们在胃癌癌胚抗原( Immunoelectron microscopy of enzyme-tagging method of choice, the general activity of the combination of strong, high sensitivity PAP method is better. In the method of positioning and embedding, we used the method of buckling which filled the embedding agent capsule or the plastic tube to buckle on the selected part; and the plastic film sticking method, although it is reported that the buckling method is effective, the tissue section is not easy sometimes Separated from the slide, it is easy to damage the ultrastructure of the tissue cells. The plastic film paste method to overcome the above shortcomings, we in gastric carcinoembryonic antigen (