连续流动-水杨酸法测定水中氨氮的干扰因素研究
Study on the Interference Factors of Ammonia Nitrogen in Water by Continuous Flow-Salicylic Acid Method
马红宇 1廖佳炜 1冯国炜1
作者信息
- 1. 中化泉州石化有限公司质检中心,福建 泉州 362000
- 折叠
摘要
对使用连续流动分析仪分析氨氮在石油化工行业中存在的典型干扰因素进行了研究.通过对典型还原性盐、有机胺类、醛醇类有机物、钙金属离子及余氯等因素进行干扰实验,确认在较高浓度的还原性物质、钙金属离子及余氯等存在条件下,氨氮测定存在明显干扰,需要进行相应前处理后方可测定.
Abstract
The typical interference factors of ammonia nitrogen in petrochemical industry are studied by using continuous flow analyzer.Through interference experiments on typical reducing salts,organic amines,aldehydes and alcohols,calcium metal ions and residual chlorine,it is con-firmed that there is obvious interference in the determination of ammonia nitrogen in the presence of high concentrations of reducing substances,calcium metal ions and residual chlorine,and it is necessary to carry out corresponding pretreatment before determination.
关键词
连续流动-水杨酸法/氨氮/石油化工污水Key words
Continuous flow-salicylic acid method/Ammonia nitrogen/Petrochemical wastewater引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据