摘要
二甲基甲酰胺和盐酸羟胺反应生成异羟肟酸 ,异羟肟酸与三价铁离子反应生成红棕色的化合物 ,其λmax为 4 94nm ,本文所拟的方法稳定性好、灵敏度高、检出限低 ,显色时间短 .应用本实验方法测定塑胶废水的二甲基甲酰胺 ,结果满意 .
N,N—Dimethyl formamide is reacted with Hydroxylamine hydrochloride into hydroxaminc acid.Then hydroxamic acid is reacted with three_valence into red complex whose maximum absorption lies at 494 mn.Tn this paper,it shows that the method owns many good characters such as high sensitivity,good stability,low detection limit,shtort time of color development.The method has been applied to determination of N,N_Dimethyl formamide in the plastic wastewater with satisfactory results.
出处
《环境与开发》
2000年第1期49-50,共2页
Environment and Exploitation
