N,N-二乙基对苯二胺分光光度法检测生活饮用水中硫化物的注意事项探析
Analysis on the precautions for determination of sulfide in drinking water by N,N-Diethyl-p-phenylenediamine spectrophotometry
刘驰青 1马加翠 1耿发梅1
作者信息
- 1. 昆明市五华区疾病预防控制中心,昆明 650032
- 折叠
摘要
目的 通过实验分析并总结影响使用N,N-二乙基对苯二胺分光光度法进行水中硫化物测定的因素和注意事项.方法 采用N,N-二乙基对苯二胺分光光度法检测水中硫化物,用已知硫化物含量的标准样品验证方法准确性和精密度,对实验过程中的各个环节进行分析.结果 N,N-二乙基对苯二胺分光光度法测定水中硫化物,其方法线性、精密度、准确性均满足分析要求,适合应用于清洁水中硫化物的检测.结论 实验过程中需注意采样、标准溶液的配制和吸取、显色液的配制等环节,才能有满意的结果.
Abstract
Objective Analyze and summarize the factors and precautions that affect the use of N,N-diethyl-phenylenediamine spectrophotometry for the determination of sulfides in water through experimental analysis.Methods N,N-diethyl-p-phenylenediamine spectrophotometry was used for the determination of sulfide in water.The accuracy and precision of the method were verified by the standard samples with known sulfide content,and all aspects of the experiment were analyzed.Result The N,N-diethyl-p-phenylenediamine spectrophotometry method for the determination of sulfides in water meets the analytical requirements in terms of linearity,precision,and accuracy,making it suitable for the detection of sulfides in clean water.Conclusion When doing the experiment,attention should be paid to sampling,preparation and absorption of standard solutions,and preparation of colorimetric solutions etc.in order to achieve satisfactory results.
关键词
饮用水/硫化物/分光光度法/检测注意事项Key words
drinking water/sulfides/spectrophotometry/detection precautions引用本文复制引用
出版年
2024
NETL
NSTL
万方数据