采用一种新的显影液配方,用硝酸银代替进口的乳酸银,省去阿拉伯胶,减弱了免疫金银染色的背景着色,应用于石蜡切片胰岛瘤β细胞定位获得了满意的结果. A new developing solution was used to replace the imported silver lactate with silver nitrate. The gum arabic was omitted, the background coloring of immunogold-silver staining was weakened, and satisfactory results were obtained when using β-cell localization of paraffin-embedded islets.