摘要
Ｎ－氨基甲酸酯农药经二次水解可产生经胺，利用径胺的还原性可将Ｆｅ３＋定量还原为Ｆｅ２＋。后者与邻菲罗啉生成桔红色络合物，λｍａｘ＝５０８ｎｍ，可用于试样的分光光度法测定，其线性范围在４．２ｘ１０－６～２．１ｘ１０－５ｍｏｌ／Ｌ。
The mechanism and conditions of the title-method have been studied. N-carbamate is converted to hydroxylam in e by two step hydroly tic reactions.Tak in g advan tages of the red ucingproperty of hydroxylamine, Fe3+ was reduced tO Fe2+ quantitatively。 The reaction between Fe2+and O-phenanthroline gives a complex compound with orange red colour(λmax=508nm). So thecarbamate pesticiue would be succesfully determined by spectrophotometry。 U nder the experimentalcondItions, the Beer's law is obeyed in the range of 4.2x 10-6-2.1x10-5mol/L。
出处
《烟台大学学报（自然科学与工程版）》
CAS
1995年第1期18-21,共4页
Journal of Yantai University(Natural Science and Engineering Edition)
