摘要
针对进口丙烯酸丁酯中微量污染物所引起的变色反应,建立相应的测试方法,采用气-质联用对样品中的污染物进行定量分析与结构鉴定;运用固相微萃取方法对生色反应的产物进行有效的富集,并进行定性分析;在生色反应发生的条件下,模拟生色反应中三种产物的有机合成反应,确定引起变色的物质。结果表明,引起进口丙烯酸丁酯变色反应的污染物为苯胺所致。在苯胺浓度为0.30‰～3.00‰的范围内,本方法有很好的线性关系,其相关系数R=0.9995。
As for the color changing reaction caused by small amount pollutant in import Butyl Acrylate, the method was developed and analyzed the pollutant on quality and quantity by GC/MS. The productions of colorproducing reaction were enriched by solid-phase microextraction（SPME） and quantity by GC/MS. Under the condition of the color producing reaction, the organic synthetic reaction of three productions was simulated, thesubstance of color changing reaction was determined. The results show, the color producing reaction was caused by the pollutant of Aniline in import Butyl Acrylate. The method was in a good liner in 0.30-3.00‰ of Aniline, the regression coefficient of the method was 0.9995.
出处
《现代仪器》
2008年第5期61-63,共3页
Modern Instruments
