极谱法分析金属离子时,可用大片银作为参比电极,用极谱法分析测定有机物丁烯醛时,亦可用银片作为参比电极。一银电极的制作将薄银片(或镀了一层紧密银的薄铜片)剪成二块宽5～8毫米,长30～35毫米的长方形,拆成如图1状,上头用铜导线固定。然后直接插到滴汞电极两边。同时,将二边的引出线绞合后与仪器主机正极相联。 Polarographic analysis of metal ions, you can use large silver as the reference electrode, polarography analysis of organic substances crotonaldehyde, silver can also be used as the reference electrode. A silver electrode production Thin silver flake (or coated with a thin layer of silver thin copper) cut into two pieces of 5 to 8 mm wide and 30 to 35 mm long rectangular, split into the shape of Figure 1, the top with copper Wire fixed. Then insert directly to the droplet mercury electrode on both sides. At the same time, the two sides of the stranding leads are connected with the positive pole of the instrument main body.