摘要
建立全自动生化分析仪测定水中亚硝酸盐含量的测定方法。应用全自动生化分析仪的自动化操作步骤,采用亚硝酸盐和对氨基苯磺酸反应生成重氮盐,在与N-（1-萘基）-乙二胺偶联生成红色染料,进行比色定量。本实验方法精密度RSD%0.64%~2.84%,回收率96.0%~100.5%,在线性范围0~0.5 mg/L内,线性良好,相关系数r=0.9997。应用全自动分析法测定水中亚硝酸盐含量,代替人工比色法实现了操作过程自动化,方法的精密度、准确度均能满足水中亚硝酸盐含量的测定要求。
Determination of the nitrite content of water to establish automatic biochemical analyzer.Application of automatic biochemical analyzer automated steps,use of nitrite and response to amino acid diazonium salt,with N-（1-naphthyl）-ethylenediamine coupled to form a red dye,Colorimetric quantification.The test method precision RSD% 0.64% ~2.84%,recoveries from 96.0% to 100.5%,the linear range of 0 ~ 0.5mg/L within,good linear correlation coefficient r= 0.9997.Determination of the nitrite content of water by automatic analysis,instead of doing colorimetry achieve operational process automation,precision of the method,accuracy can meet the requirements of water measured nitrite content.
出处
《山东化工》
CAS
2016年第13期90-91,95,共3页
Shandong Chemical Industry
