振荡提取-氧弹燃烧-离子色谱法测定纺织品中的可吸附有机卤化物  

Determination of adsorbable organic halides in textiles by oscillation extractionoxygen bomb combustion-ion chromatography

作　　者：龚振宇[1] 周文涛 GONG Zhenyu;ZHOU Wentao(Chongqing College of Finance and Economics,Chongqing 401260,China;School of Chemistry and Chemical Engineering,Chongqing University,Chongqing 400044,China)

机构地区：[1]重庆财经职业学院,重庆401260 [2]重庆大学化学化工学院,重庆400044

出　　处：《印染》2024年第12期62-65,共4页China Dyeing and Finishing

基　　金：中国环境监测总站基金资助项目(GA21P0575);“产教融合背景下服装设计与工艺专业‘1+X’人才培训模式探究”(J2021011YFC)。

摘　　要：采用振荡提取、氧弹燃烧以及离子色谱定量检测等步骤测定纺织品中可吸附有机卤化物(AOX)。将纺织品加入到适量的提取液中,通过振荡使AOX充分溶解并富集在活性炭上,使用酸性硝酸钠溶液处理以去除无机卤化物。采用氧弹燃烧方式对可吸附AOX的活性炭进行裂解、燃烧及气化,采用离子色谱法测定。结果发现,在标准溶液0.02~2.50mg/L范围内,Cl^(-)、Br^(-)和I^(-)的线性相关系数R2在0.999以上,AOX的定量限为7.58~8.67mg/L,在不同的加标水平下AOX的平均回收率在83.1%~98.1%,相对标准偏差RSD(n=7)为2.1%~5.9%,表明方法具有良好的回收率和精密度。The adsorbable organic halides(AOX)in textiles are determined by oscillation extraction,oxygen bomb combustion and ion chromatography quantitative detection.Textiles are added to an appropriate amount of extract,AOX is fully dissolved and enriched on activated carbon by oscillation extraction,and treated with an acidic sodium nitrate solution to remove inorganic halides.The activated carbon adsorbed with AOX is cracked,burned and gasified by oxygen bomb combustion,and quantified by ion chromatography.The results show that the linear correlation coefficients R^(2) of Cl^(-)、Br^(-)and I^(-)are above 0.999 in the range of 0.02-2.50 mg/L of standard solution.The quantification limits of AOX are 7.58-8.67 mg/L.The average recovery rates of AOX are 83.1%-98.1% at different spiked levels,and the relative standard deviations RSD(n=7)are 2.1%-5.9%,indicating that the method has good recovery rate and precision.

关 键 词：测试 振荡提取 氧弹燃烧 离子色谱 可吸附有机卤化物 纺织品 

分 类 号：TS197[轻工技术与工程—纺织化学与染整工程]