摘要
2-萘胺属于24种不允许检出的禁用偶氮染料之一,而它的同分异构体1-萘胺不属于此列。在现行检测标准条件下,1-萘胺和2-萘胺的气相色谱保留时间相近,且质谱图完全相同,所以1-萘胺会对2-萘胺的检测造成干扰,使2-萘胺的检出难以确定。针对这个问题,本文通过优化气相色谱-质谱(GCMS)通用非极性柱的升温程序,扩大两个化合物的保留时间差,最终达到有效分离。实际检测中,通过与标准物质保留时间的对比,可以综合保留时间及出峰顺序达到对2-萘胺的快速定性。
As one of the 24 interdictory azo dyes, 2-Naphthylamine has its isomeric compound 1-naphthy- lamine, which does not belong to this scope. It＇s difficult to distinguish 2-naphthylamine from 1-naphthylamine, as the two compounds not only have the adjacent GC retention time but also have the same mass spectrum. In this paper, by adjusting the heating procedure of the GC-MS, we can expand the retention time differences effectively. Comparing with the standard substance, we can distinguish 2-naphthylamine from 1-naphthylamine quickly by the retention time and the peak value order.
出处
《针织工业》
北大核心
2013年第11期63-64,共2页
Knitting Industries
基金
江苏省质量技术监督局科技项目(KJ133820)
