快速溶剂萃取法提取测定出口纺织品中邻苯基苯酚

为打破欧盟的技术壁垒,应用快速溶剂萃取法提取测定出口纺织品中的邻苯基苯酚。以甲醇为溶剂,在温度为50℃,压力为10.34 MPa的条件下进行提取,选用HP-5毛细管色谱柱,采用GC-FID测定出口纺织品中邻苯基苯酚的含量。此方法的检出限为0.05μg/g,线性方程为Y=19.891X-0.599 8,线性相关系数r2=0.999 8,线性范围为0.1~15.0μg/mL,平均回收率为100.8%。结果表明该方法具有操作简便,快速方便,灵敏度高等特点,可满足出口纺织品中邻苯基苯酚检测的要求。

Extraction and determination of ortho-phenyphenol in export textiles by accelerated solvent extraction technique

In order to break down the technological barrier set by the European Union,develop an accelerated solvent extraction technique for extraction and determination of ortho-phenyphenol in export textiles.According to this method,the ortho-phenyphenol in textiles was extracted with methanol,50℃,10.34 MPa,determined with HP-5 capillary column by GC-FID.The detection limit was 0.05μg/g,the linear equation wasY= 19.891X-0.599 8,r2=0.999 8,the linear range was 0.1-15.0μg/mL,and the average recovery was 100.8%.The method is simple and sensitive and suitable for detecting ortho-phenyphenol in export textiles.