顶空气相色谱法测定水性涂料中的苯系物  

Determination of benzene series in waterborne coatings by headspace gas chromatography

作　　者：吴领军[1] 孙银生[1] 梁亚丽 贺攀红[1] 杨珍[1] WU Ling-jun;SUN Yin-sheng;LIANG Ya-li;HE Pan-hong;YANG Zhen(Henan Nuclear Industry Radioactive Nuclide Test Centre,Zhengzhou 450044,China)

机构地区：[1]河南省核工业放射性核素检测中心,河南郑州450044

出　　处：《化学工程师》2022年第8期38-40,103,共4页Chemical Engineer

摘　　要：采用浓度为360g·L^(-1)基质改正液作为涂料溶剂,样品经充分溶解后于平衡温度85℃、平衡时间40min,载气压力差为0.01MPa顶空条件下,通过色谱柱分离,FID检测器检测,外标法定量测定水性涂料中的苯系物。结果表明,方法线性范围在0.02~1.00mg·L^(-1)范围内,含量与峰面积呈线性关系,检出限为0.008~0.010mg·L^(-1),线性系数不小于0.999,方法精密度RSD≤3%,加标回收率为92.3%~98.5%。The concentration of 360g·L^(-1) matrix correction solution was used as solvent,the sample was fully dissolved and then separated by column chromatography and FID detector under the condition of equilibrium temperature 85℃and equilibrium time 40min,quantitative determination of benzene series in water-borne coatings by external standard method.The results showed that the linear range of the method was 0.02~1.00mg·L^(-1),the detection limit was 0.008~0.010mg·L^(-1),the linear coefficient was not less than 0.999,the precision of the method was less than 3%,the recovery was 92.3%~98.5%.

关 键 词：顶空-气相色谱法 水性涂料 苯系物 基质改正液 

分 类 号：TQ630.7[化学工程—精细化工] O657.71[理学—分析化学]