电喷雾电离-串联质谱法测定纺织皮革产品中4,4-二氨基二苯醚  

Electrospray Ionization-MS/MS Determination of 4,4′-Diamino Diphenyl Oxide in Textiles and Leathers

作　　者：张焱[1,2] 杨成对[2] 杨理[1] 乔梅英[1] 

机构地区：[1]河南科技学院化学化工学院,新乡453003 [2]清华大学化学系,北京100081

出　　处：《理化检验（化学分册）》2011年第2期183-185,190,共4页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

基　　金：河南省科技攻关项目(991090221);河南省新乡市科技攻关发展项目(No06C107)

摘　　要：在不需要色谱分离的前提下,应用电喷雾电离-串联质谱法(ESI-MS/MS)对纺织品中偶氮染料还原产物4,4′-二氨基二苯醚进行测定。在MS/MS中,选择电喷雾离子源,以正离子扫描,选择离子监测模式和二级选择反应监测模式对4,4′-二氨基二苯醚进行定性和定量检测。以[M+H](m/z201)为母离子,选择其二级离子中碎片离子[M+H-NH3](m/z184)和[M+H-C6H7N](m/z108)为子离子。方法的检出限(19S/N)为70 ng.L-1。以1 ng.L-14,4′-二氨基二苯醚溶液进样2μL,平行测定9次,峰面积测定值的相对标准偏差为1.7%。Electrospray ionization-tandem mass spectrometry（ESI-MS/MS） was applied to the detection of 4,4′-diamino diphenyl oxide reduced from various azo dyes in textiles and leathers,without chromatographic separation.In the MS/MS analysis,ESI was used as ion source,and modes of SIM and SRM with positive ion scanning were taken for qualitative and quantitative analysis of 4,4′-diamino diphenyl oxide.The （m/z 201） was taken as the mother ion,and the fragment ions [M＋H-NH3]（m/z 184） and [M＋H-C6H7N]（m/z 108） were taken as daughter ions.Limit of detection（19S/N） found for the method was 70 ng·L-1.Precision of the method was tested with sample introduction of 2 μL of 1 ng·L-1 4,4′-diaminodiphenyl-oxide solution for 9 determination,value of RSD found was 1.7%.

关 键 词：电喷雾电离 串联质谱 4 4-二氨基二苯醚 

分 类 号：O657.7[理学—分析化学]