【摘要】 研究了用气敏电极测定离子膜制碱工艺二次盐水中氨的分析方法 ,对测定的线性范围作了理论探讨和大量试验 ,pH值为 10 .5～ 11.5时 ,线性范围为 0 .15～ 8.0mg/L ,最低检出限度为 0 .0 85mg/L ,RSD不大于1.5 %更多还原

【Abstract】 The analytical methods of ammonia in secondary brine for production of ion-exchange-membrane caustic soda by gas sensing electrode are studied,the linearity range is determined with theoretical discussion and a lot of experiments.When the pH value is from 10.5 to 11.5,the linearity range is from 0.15 to 8.0 mg/L,the lowest limits is 0.85 mg/L,RSD is no more than 1.5%.更多还原