油漆涂层中乙二醇单甲醚和乙二醇单乙醚残留量的检测  

Determination of Ethylene Glycol Monomethyl Ether and Ethylene Glycol Monoethyl Ether Residues in Paint Coating

作　　者：蚁乐洲[1] 余敏行 周懿琦 林绍鹏[1] 李琼[2] 杨思明[1] 

机构地区：[1]广东检验检疫技术中心,广东广州510623 [2]华南理工大学,广东广州510641

出　　处：《广东化工》2014年第18期223-224,220,共3页Guangdong Chemical Industry

基　　金：广东检验检疫局科研项目(2013GDK19);质检公益性行业科研专项(2012104020)

摘　　要：采用超声波萃取方法和气相色谱质谱联用技术（GC-MS）,对油漆涂层中的乙二酵单甲醚和乙二醇单乙醚残留量进行定性定量检测技术研究,得到乙二醇单甲醚的仪器定性检出限为0.075 mg/L,方法的定量检出限最低为25 mg/kg;乙二醇单乙醚的仪器定性检出限为0.033 mg/L,方法的定量检出限最低为11 mg/kg.两者的标准工作溶液（2～50 mg/L）线性相关系数r均为0.999以上,连续进行6次测试各浓度响应峰面积的RSD在10％以内.进行前处理的正交实验,最佳萃取条件是使用甲醇在1130W超声波萃取30分钟.Based on Ultrasonie Extration and GC-MS was studying for qualititative and quantitative analysis of both ethylene glycol monomethyl ether and ethylene glycol monoethyl ether residing in paint coating. The qualitation limit of the ethylene glycol monomethyl ether was 0.075 mg/L while the qualitation limit of the ethylene glycol monoethyl ether was 0.033 mg/L. For the method, the minimum quantitation limit of the ethylene glycol monomethyl ether was 25 mg/kg while the minimum quantitation limit of the ethylene glycol monoethyl ether was 11 mg/kg. The calibration curves of them were linear in the range of 2-50 mg/L and the correlation coefficient were above 0.999. After analyzing the influencing factors of pretreatment, methanol is identified as extraction solvent. And then, through orthogonal experiment, 1130 W ultrasonic for 30 minutes was identified as the optimum extraction condition.

关 键 词：乙二醇单甲醚 乙二醇单乙醚 涂层 

分 类 号：O65[理学—分析化学]