纳氏试剂分光光度法与水杨酸分光光度法测定废水中氨氮的方法比对  

Comparison between Nessler’s Reagent Spectrophotometry and Salicylic Acid Spectrophotometry for the Determination of Ammonia Nitrogen in Wastewater

作　　者：石慧 Shi Hui(Beijing Eco-Environmental Protection Technology Research Institute Co.,Ltd.of China National Inspection and Testing Holding Group,Beijing 100024,China)

机构地区：[1]国检测试控股集团北京生态环境保护技术研究院有限公司,北京100024

出　　处：《皮革制作与环保科技》2024年第3期19-21,共3页Leather Manufacture and Environmental Technology

摘　　要：本文分别使用纳氏试剂法和水杨酸法对水样中的氨氮进行测试,实验结果显示,当样品浓度在0.05 mg/L及0.10 mg/L时候,水杨酸法优于纳氏试剂法,当样品浓度为5.0 mg/L时,纳氏试剂法与水杨酸法相差无几,当样品浓度为10.0 mg/L及20.0 mg/L时,纳氏试剂法优于水杨酸法。在低浓度时,水杨酸法回收率优于纳氏试剂法,在高浓度时,纳氏试剂法回收率优于水杨酸法。The ammonia nitrogen in wastewater was determinate by Nessler’s reagent spectrophotometry and Salicylic acid spectrophotometry.The results showed that the method of Salicylic acid spectrophotometry was superior to the method of Nessler’s reagent spectrophotometry when the concentration of the sample was 0.05 mg/L and 0.10 mg/L.Comparison with the method of salicylic acid method,Nessler’s reagent spectrophotometry was similar while the sample concentration was 5.0 mg/L,but the method of Nessler’s reagent spectrophotometry was superior when the sample concentration was 10.0 mg/L and 20.0 mg/L.

关 键 词：水质 氨氮 纳氏试剂法 水杨酸法 

分 类 号：TS5[轻工技术与工程—皮革化学与工程]