Py-GC-MS法快速测定纺织品中苯并三唑类紫外线吸收剂  

Rapid determination of 4 benzotriazole UV absorbers in textiles by Py-GC-MS method

作　　者：包海峰[1] 赵海浪[1] 韩莹莹[1] 尹喆 谭玉静[1] BAO Haifeng;ZHAO Hailang;HAN Yingying;YIN Zhe;TAN Yujing(Shanghai Institute of Quality Inspection and Technical Research,Shanghai 200040,China)

机构地区：[1]上海市质量监督检验技术研究院,上海200040

出　　处：《印染》2022年第8期54-57,共4页China Dyeing and Finishing

基　　金：上海市科技创新行动计划项目(20142202400)。

摘　　要：建立了一种快速测定纺织品中苯并三唑类紫外线吸收剂的热裂解-气相色谱-质谱分析(Py-GC-MS)方法,得到了4种苯并三唑类化合物(UV-320、UV-350、UV-327、UV-328)最佳热裂解条件:裂解炉温度为350℃,热裂解时间为0.1 min,裂解炉接口处温度为300℃。该方法在100~2 000 mg/kg线性范围内,线性相关系数R2>0.999,方法的检出限为0.08~0.13 mg/kg。在棉、羊毛、聚酯样品中的加标回收率为84.66%~126.93%,相对标准偏差(RSD)为0.80%~4.63%(n=7)。该方法无需有机溶剂萃取,简单快捷,灵敏度高,可用于纺织品中4种苯并三唑类紫外线吸收剂的快速检测。A method for rapid determination of benzotriazole-based UV absorbers in textiles by pyrolysis-gas chromatography-mass spectrometry(Py-GC-MS)is established.The optimal pyrolysis conditions of four benz⁃otriazole-based compounds(UV-320、UV-350、UV-327、UV-328)are:the temperature of the pyrolysis furnace is 350℃,the pyrolysis time is 0.1 min,and the interface temperature of furnace is 300℃.The method is in the linear range of 100-2000 mg/kg,the linear correlation coefficient R2>0.999,and the detection limit of the meth⁃od is 0.08-0.13 mg/kg.The recoveries of cotton,wool and polyester are 84.66%-126.93%,and the relative stan⁃dard deviation(RSD)is 0.80%-4.63%(n=7).The method is simple,rapid and sensitive without organic solvent extraction.It can be used for the rapid detection of four benzotriazole-based UV absorbers in textiles.

关 键 词：测试 热裂解-气相色谱-质谱法 苯并三唑类化合物 紫外线吸收剂 纺织品 

分 类 号：TS197[轻工技术与工程—纺织化学与染整工程]