中文摘要：

以胶束电动毛细管色谱（Micellar electrokinetic capillary chromatography,MEKC）分离邻仲丁基苯酚（os BP）、双酚A（BPA）、四溴双酚A（TBBPA）、辛基酚（OP）和壬基酚（NP）。采用反向极性堆积模式（Reversed electrode polarity stacking mode,REPSM）建立了在线富集5种烷基酚类物质的简便、有效方法。与常规MEKC方法相比,REPSM方法使5种烷基酚类物质的灵敏度提高了20-285倍。考察了常规MEKC的分离条件,并对影响富集过程的一些因素进行了研究,同时对富集方法的重现性和检出限进行了考察。结果表明,REPSM对5种烷基酚类物质的检出限（S/N=3）为0.027-0.64μmol/L。该方法已成功应用于食品塑料盒中烷基酚类物质的测定,加标回收率为86.0%-103%。

英文摘要：

In this paper,alkylphenols（ APs） were separated by micellar electrokinetic chromatography（ MEKC） and reversed electrode polarity stacking mode（ REPSM） was developed for the on-line sample stacking of these compounds. MEKC coupled with REPSM increased 20- 285 times of the sensitivity for os BP,TBBPA,BPA,OP and NP compared to the conventional MEKC. The separation conditions in the MEKC method were studied,and many factors affecting the sample stacking process were investigated in detail. Additionally,sample injection as large as 41. 37 k Pa × 60 s was applied in REPSM- MEKC. The linear relationship and reproducibility were also examined. Under the optimum conditions,the detection limits（ S / N = 3） of APs were in the range of 0. 027- 0. 64μmol / L. The method has been successfully applied in the detection of APs in food-packing bags with recoveries of 86. 0%- 103%.