摘要
为了探究水中硝酸盐氮检测方法的优劣,本文对目前化验室常用的3种硝酸盐氮检测方法的原理、操作及水样测定结果进行了对比分析。结果表明,3种方法的标准曲线相关系数、精密度和准确度均能满足水环境监测规范的质控要求;紫外分光光度法的仪器操作简单,检测成本低廉但步骤烦琐;离子色谱法的仪器自动化程度高,能够有效地节省检测人力,并能够同时检测水样中多种阴离子的含量,但不适合大批量检测;气相分子吸收光谱法在检测人力、仪器操作和使用成本上介于另外两种方法之间。该研究成果可为检测人员选择合适的检测方法提供参考。
In order to explore the advantages and disadvantages of nitrate nitrogen detection methods in water,this paper compares and analyzes the principles,operations and water sample determination results of three commonly used nitrate nitrogen detection methods in laboratories.The results show that the correlation coefficient,precision and accuracy of the standard curves of the three methods can meet the quality control requirements of the water environment monitoring standard.The instrument of ultraviolet spectrophotometry is simple to operate,and the detection cost is low,but the steps are complicated.Ion chromatography has a high degree of automation,which can effectively save detection manpower and simultaneously detect the contents of various anions in water samples,but it is not suitable for mass detection.Gas-phase molecular absorption spectrometry is between the other two methods in terms of detection manpower,instrument operation and use cost.The research results can provide reference for testing personnel to choose appropriate testing methods.
作者
殷哨飞
YIN Shaofei(Anhui Fuyang Hydrology and Water Resources Bureau,Fuyang 236000,China)
出处
《水资源开发与管理》
2022年第7期58-61,70,共5页
Water Resources Development and Management
关键词
紫外分光光度法
离子色谱法
气相分子吸收光谱法
硝酸盐氮检测
ultraviolet spectrophotometry
ion chromatography
gas phase molecular absorption spectrometry
nitrate nitrogen detection
