摘要
采用索氏提取技术与气相色谱-质谱(GC-MS)联用的方法,建立了测定针织服装中6种邻苯二甲酸酯(PAEs)质量分数的方法。样品经乙酸乙酯提取,GC-MS选择离子监测模式(SIM),内标法定量。结果表明:该方法对6种邻苯二甲酸酯的检出限为5.2~11.7μg/kg,曲线相对响应因子的相对标准偏差(RSDs)为2.98%~7.86%;对空白针织服装样品做加标回收实验,6种PAEs的回收率为87.3%~105.8%,RSDs为2.96%~8.27%(n=6)。该方法提取效率高、精密度好,适用于针织服装中痕量、超痕量PAEs的检测。
A method for the determination of six phthalates(PAEs)in knitted garments by Soxhlet′s extraction and gas chromatography-mass spectrometry(GC-MS)was developed.The samples were extracted with ethyl acetate.The identification and quantification were performed by GC-MS in selected ion monitoring(SIM)mode,and quantified by internal standard.The results showed that the detection limits of phthalic acid esters ranged from 5.2 to 11.7μg/kg,with the RSDs of relative response factor ranged from 2.98%to 7.86%.The standard addition recovery experiment was carried on the blank knitted garments sample.The recovery of 6 PAEs was 87.3%~105.8%,and the RSDs were in the ranges of 2.96%~8.27%(n=6).The method was sensitive and high precision,and suitable for the trace and ultra trace detection of six phthalic acid esters in knitted garments.
作者
龚振宇
GONG Zhenyu(Chongqing College of Finance and Economics,Chongqing 401260,China)
出处
《印染助剂》
CAS
2021年第2期57-60,共4页
Textile Auxiliaries
关键词
气相色谱-质谱
索氏提取
邻苯二甲酸酯
针织服装
gas chromatography-mass spectrometry
Soxhlet′s extraction
phthalic acid esters
knitted garments