Abstract:
Sulfuric acid solution(one part of sulfuric acid in ten parts of distilled water) is used to substitute for potassium hydrogen sulfate in a try to adjust pH value of the sample solution when determinating phenyl amines in wastewater by the photometry.The results show that the analytical data are quite accurate,and in addition,operation is performed easily and speedy.Therefore this method is applicable to the determination of lots of samples and is of actual value.
Key words:
determination of phenyl amines,
pH adjustment,
experiment,
spectrophotometry
摘要：
用萘乙二胺偶氮光度法测定废水中苯胺类时,用(1+10)硫酸代替硫酸氢钾调节试液的pH,效果理想,且操作简便快速,适合于大批样品的分析,具有实际运用意义。
关键词:
苯胺类测定,
pH调节,
分光光度法
CLC Number:
Fang Shuqin, Jiang Xiaobo, Yi Weidong, Chen Zhiyong, Li Fei. Adjustment of pH value in the determination of phenyl amines and modification thereof[J]. INDUSTRIAL WATER TREATMENT, 2003, 23(5): 54-54.
方淑琴, 姜晓波, 易卫东, 陈智勇, 李飞. 测定苯胺类pH调节试验与改进[J]. 工业水处理, 2003, 23(5): 54-54.