涂料中氯化石蜡和滴滴涕的检测研究  

Determination of chlorinated paraffins( CPs) and dichlorobenzophenones( DDTs) in coatings

作　　者：陈满英 陈纪文 韦柳鑫 黎军 路风辉[2] 

机构地区：[1]广东产品质量监督检验研究院,广东广州510330 [2]顺德职业技术学院,广东佛山525300

出　　处：《现代化工》2014年第9期169-172,共4页Modern Chemical Industry

基　　金：国家质检总局科技计划项目(2013QK284)

摘　　要：建立了油性和水性涂料中氯化石蜡（CPs）和滴滴涕（DDTs）的前处理和检测方法.比较了超声萃取和索氏提取2种前处理方法的差异.结果表明,涂料样品用溶剂抽提,弗罗里硅土和酸性硅胶复合柱富集和纯化,不同溶剂淋洗可以使CPs和DDTs有效分离,利用GC-ECNI-LRMS和GC-EI-MS检测涂料中48种CPs和4种DDT含量.该方法具有良好的精确性和准确性,实际样品回收率高达85％ ～90％.A pretreatment method and determination method for detecting chlorinated paraffins （CPs） and dichlorobenzophenones （DDTs） in both oil-based and water-based coating are established. The differences between uhrasonie extraction and soxhlet extraction are compared. The results show that CPs and DDTs can be effectively separated by solvent extraction, Florida silica and acidic silica gel composite column enrichment and purification, and subsequent elution with different solvents. A quick and convenient sample pretreatment method and detection method （ GC-ECNI-LRMS and GC-EI-MS） for 48 kinds of CPs and 4 kinds of DDTs are obtained. The recovery can reach up to 85 % - 90%.

关 键 词：气相色谱/质谱联用 短链氯化石蜡(SCCPs) 中链氯化石蜡(MCCPs) 滴滴涕(DDTs) 涂料 前处理 

分 类 号：TQ041.7[化学工程]