【摘要】 苯酚与对硝基苯胺的重氮盐偶合后，在０．０３ ｍ ｏｌ／ＬＮａ２ＣＯ３－０．０３ｍ ｏｌ／ＬＮａＨＣＯ３－１６０ ｇ／Ｌ乙醇介质中，偶合产物在单扫描示波极谱上产生一个灵敏而清晰的吸附还原波，波高与苯酚浓度在０．００５～０．５ｍ ｇ／Ｌ范围内呈良好线性关系，峰电位为－ ０．５８Ｖ（ｖｓ．ＳＣＥ），方法检出限达０．００２ ｍ ｇ／Ｌ。已用于天然水中痕量苯酚的测定。更多还原

【Abstract】 Phenol in water can react with the diazo salt of p nitroaniline.In 0 03 mol/L NaHCO 3 0 03mol/L Na 3CO 3 160g/L alcohol system,the reaction products can be adsorbed and reduced on the mercury electrode with a well defined single sweep polarographic wave.The peak potential is -0 58 V( vs .SCE).The peak height is proportional to the concentration of phenol over the range of 0 005～0 5 mg/L,the detection limit is 0 002 mg/L.This method has been proved sensitive for the determination of trace phenol in natural waters.更多还原