摘要
应用自制羟基 二苯并冠醚 (OH -DB14C4/OH -TSO)为涂层的固相微萃取探头 ,采用气相色谱法测定苯胺(A)、间甲苯胺 (MT)、N ,N 二乙基苯胺 (NNDEA)、N 乙基间甲苯胺 (NEMT)和 3 ,4 二甲基苯胺 (3 ,4 DMA)。并对固相微萃取的最佳条件进行了优化。顶空固相微萃取 气相色谱法的检测限 (LOD)为 0 .17～ 0 .98ng·ml-1,相对标准偏差 (RSD)为3 .2 3 %～ 6.2 0 % ,线性范围 (LR)为 0 .11～ 2 9μg·ml-1。对药厂废水的 3 ,4 DMA进行了分析 ,其回收率为 86%～ 90 %
Monocyclic Aromatic amines(aniline,m-toluidine,N,N diethy m toluidine,3,4 dimethylaniline) were detected in gas chromatography,using a solid phase microextraction fiber containing hydroxydibenzo 14 crown 4(OH-DB14C4)/ hydro terminated silicone oil(OH-TSO).Optimization was carried out for the determination of aromatic amines with SPME fiber.The method has the advantages of high sensitivity and free solvent.The limit of detection(LOD) was 0.17～0.98 ng·ml -1 ,the relative standard deviation(RSD) ranged from 3.23% to 6.20%,and linear range(LR)was found to be 0.11 to 29 μg·ml -1 .The method was applied to the determination of aromatic amines in wastewater samples from pharmaceutical factory.
出处
《湖北化工》
2002年第2期43-45,共3页
Hubei Chemical Industry
基金
湖北省自然科学基金 (2 0 0 0J0 10 )
