白乳胶中乙酸乙烯酯及乙酸乙酯的分析.pdfVIP

( ) 烟草科技 / Tobacco Science Technology 烟草化学 / Tobacco Chem istry 2009年第 8期 总第 265期 白乳胶中乙酸乙烯酯及乙酸乙酯的分析 夏巧玲 , 刘惠民 , 丁 　丽 , 张晓兵 中国烟草总公司郑州烟草研究院 ,郑州高新技术产业开发区枫杨街 2 号 　45000 1 关键词 : 白乳胶 ;残留单体 ; 乙酸乙烯酯 ; 乙酸乙酯 ; GC 摘要 :为了同时测定烟用白乳胶中残留单体 ———乙酸乙烯酯及其杂质乙酸乙酯 ,考察了萃取溶剂种类和 用量 、萃取方式 、破乳 、盐析 、色谱柱的极性及有关分析条件对测定结果的影响 ,建立了用水破乳 、正己烷 萃取 、丁酸乙酯作内标 、采用 GC 同时测定烟用 白乳胶中乙酸乙烯酯和乙酸乙酯含量的方法 。结果表 μ 明:方法的检测限低于 0. 9 g / g, 回收率为 77% ～82 % , R SD 3% 。该方法适合烟用白乳胶中乙酸乙烯 酯及乙酸乙酯的定量分析 。 中图分类号 : TS426, TS472　文献标识码 : B 　文章编号 : 1002 - 086 1 (2009) 08 - 0035 - 03 Ana ly sis of Ethy l A ceta te and V iny l A ceta te in Polyv iny l A ceta te Em ulsion A dhe sive X IA Q IAO L IN G, L IU HU IM IN , D IN G L I, and ZHAN G X IAO B IN G Zhengzhou Tobacco R e search In stitu te of CN TC, Zhengzhou 45000 1, Ch ina Keywords: Po lyvinyl acetate em u lsion adhe sive; R e sidual monom ers; V inyl acetate; Ethyl acetate; GC A b stract: B y inve stigating the influence s of extraction so lven ts and app lication rate s, extraction mode s, dem u lsification , saltingou t, po larity of ch rom atic co lum n s and relative analytical condition s on the analytical re su lts, a m ethod for sim u ltaneou sly determ in ing the re sidual monom ers, such a s vinyl acetate and ethyl acetate, in po lyvinyl acetate em u lsion adhe sive for cigarette w ith GC wa s develop ed, u sing water a s a dem u lsifier, n hexane a s an extraction so lven t and ethyl bu tyrate a s an in ternal standard. The re su lts showed that the recoverie s of the m ethod were from 77% to 82 % w ith R SD s of 3% and lim its of detection under μ 0. 9 g/ g. The m ethod is su itab le for quan titative analysis of vinyl acetate and ethyl acetate in po lyvinyl acetate em u lsion adhe sive for cigarette. 　　胶