摘要
研究了精对苯二甲酸(PTA)生产污水中杂质对氨氮测定方法的影响,探讨了适合于测定该污水氨氮含量的样品预处理方法。结果表明,常规絮凝沉淀预处理水样方法不能完全去除测定PTA生产污水的氨氮时易产生(减去)的异色和浑浊的杂质,而新方法可以完全除去易产生异色和浑浊的杂质,处理后的样品用纳氏试剂光度法或水杨酸-次氯酸盐光度法测定,回收率均在96％-104％之间。
This paper studied a new pretreatment sample method for determining the content of Ammine nitrogen of PTA production Sewage. The result shows before measuring the content of ammine nitrogen , the PTA production sewage must be treated using this new pretreatment sample method, and the routine pretreatment method can not be used to pretreatment PTA production Sewage. This paper discussed a new pretreatment method and its condition.
出处
《合成技术及应用》
2006年第4期53-54,共2页
Synthetic Technology & Application
关键词
精对苯二甲酸
氨氮
测定
预处理
PTA
ammine nitrogen
measure
pretreatment method
