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迭氮根(N_3~-)离子选择电极,国内外文献中尚未见直接研制的报导。Bottazzini Nicola1970年用AgI和单晶Ag_2S构成的硅酮聚合物膜电极,可以测定Cl~-、Br~-、I~-、IO_3~-、NCS~-和N_3~-等离子。Orion提出用硫化银电极作为指示电极用电位滴定N_3~-离子。笔者用AgI—Ag_2S膜电极,测试10~(-1)M—10~(-5)M的NaN_3溶液,证实该种电报对N_3~-离子有响应,但级差偏低。其实,凡能与Ag~+离子生成难溶银盐的阴离子,在一定条件下
Azide (N_3 ~ -) ion selective electrode, domestic and foreign literature has not been directly developed reports. Bottazzini Nicola The silicone polymer membrane electrode made of AgI and single crystal Ag_2S in 1970 can measure Cl ~ -, Br ~ -, I ~ -, IO_3 ~ -, NCS ~ - and N_3 ~ - plasma. Orion proposed using silver sulfide electrode as an indicator electrode for potential titration of N_3 ~ - ions. The author used AgI-Ag_2S membrane electrode to test 10 ~ (-1) M-10 ~ (-5) M NaN_3 solution and confirmed that this kind of cable responded to N_3 ~ - ions but the level difference was low. In fact, where can with Ag ~ + ions to generate insoluble silver salt anion, under certain conditions