简易串联柱-气相色谱法测定溶剂型油墨中苯的含量  

Determination of benzene residual in solvent-based printing inks by simple tandem column-gas chromatography

作　　者：赵永信[1] 张晶[1] 冯靓[1] 张念华[1] 王军琳 陈苘[1] ZHAO Yong-xin;ZHANG Jing;FENG Liang;ZHANG Nian-hua;WANG Jun-lin;CHEN Qing(Zhejiang Provincial Center for Disease Control and Prevention,Hangzhou,Zhejiang 310009,China)

机构地区：[1]浙江省疾病预防控制中心,浙江杭州310009

出　　处：《中国卫生检验杂志》2022年第20期2473-2475,2487,共4页Chinese Journal of Health Laboratory Technology

摘　　要：目的基于串联柱-气相色谱技术,建立一种用于测定溶剂型油墨中苯含量的检测方法。方法油墨样品通过二硫化碳溶解,用甲醇净化后,由氢火焰离子化检测器-气相色谱完成检测,样品组分的色谱分离在一根自制的简易串联毛细管色谱柱上展开,该柱由一根6 m的HP-INNOWa X毛细管色谱柱(0.25 mm×0.25μm)和一根30 m的HP-VOC毛细管色谱柱(0.20 mm×1.12μm)串联组成。结果在该串联色谱柱上,油墨中常见的干扰物质,如1,2-二氯乙烷、四氯化碳等化合物得到了较好的分离。本方法的线性范围为5μg/ml~500μg/ml,线性良好,方法的检出限为2 mg/kg,样品添加浓度50 mg/kg~400 mg/kg的平均回收率为95%~106%,相对标准偏差为3.9%~6.3%。结论本方法预处理简便,净化效果佳,可用于溶剂型油墨中苯残留的检测。Objective In order to determine the residual benzene in solvent-based ink,a gas chromatography(GC)method was established based on column tandem technique.Methods The ink sample was extracted by carbon disulfide,and then purified by methanol.The sample solution was detected by hydrogen flame ionization detector-gas chromatography(FID-GC).The chromatographic separation of sample was carried out on a self-made tandem column by connecting a 6 m HP-INNOWa X capillary column(0.25 mm×0.25μm)and a 30 m HP-VOC capillary column(0.20 mm×1.12μm).Results On this series column,interfering substances such as 1,2-ethylene dichloride and carbon tetrachloride were well separated.Good linearity was obtained when the concentration of benzene ranged from 5μg/ml to 500μg/ml.The detection limit was 2 mg/kg.The average recovery range was from 95%to 106%,and the relative standard deviation(RSD)was within3.9%-6.3%.Conclusion The method is simple and effective and can be applied for the determination of residual benzene in solvent-based inks.

关 键 词：溶剂型油墨 苯 串联柱 气相色谱 

分 类 号：O657[理学—分析化学]