【摘要】 作者发现亚硝酸根和有机试剂生成的有色偶氮化合物具有良好的电活性,研究了亚硝酸根-对氨基苯磺酸-1-萘胺盐酸盐生成的偶氮化合物在氨性介质中的极谱行为。该偶氮化合物能在-0.47伏(对饱和甘汞电极)处产生一个灵敏的吸附波。波峰非常稳定,前后无杂波。在0.003—1.0微克/毫升范围內,亚硝酸根浓度与吸附波高成直线关系。方法选择性好,适用范围广。更多还原

【Abstract】 The Polarographic behaviour of the azocompound for ned by nitrite-sulfanilic acid-(?)naphthyla mine hydrochlor ideinthe ammoniamedium has been studied.The azo compoundgives a sensitive adsorption wave at the po-tential -0.47V(VS.S.C.E.).The wave peak isvery stable.The height of the adsorption waveis rectilinearly related to concentration of nitritein range of 0.003—1.0μg/mL The method ishighly selective and can be used widely.更多还原