In the device, a prism made of K9 glass is used as substrate, and a film of Ag (55nm) is deposited on one side of the prism; after that, two flowing cells are built on the Ag film, one serves as sample solution, and the other as distilled water.

• 结构中使用一只 K9 玻璃制成的棱镜为衬底,在棱镜的一边淀积一层厚度为 55 nm的 Ag膜,在Ag膜上设置待测盐溶液样品池和参考池。