CAJ | 학술논문

将羟丙基-β-环糊精（ HP-β-CD）静态涂覆在毛细管内壁得到一种新的气相毛细管柱，以正十二烷为溶质测得色谱柱的理论塔板数为2337／m，与涂覆七-（2，6-O-二戊基-3-O-三氟乙酰基）-β-环糊精（ DP-TFA-β-CD）的毛细管柱柱效相近；然后研究这2种毛细管柱对苯系位置异构体（如硝基甲苯、硝基氯苯、二氯苯、二甲苯和苯二甲酸二甲酯）的分离性能．结果表明，它们对邻／对、间／对取代苯系化合物表现较好的分离能力，如二氯苯的位置异构体在HP-β-CD柱上的分离因子分别为1.28和1.13，比DP-TFA-β-CD柱的分离效果好．
장간병기-β-배호정（ HP-β-CD）정태도복재모세관내벽득도일충신적기상모세관주，이정십이완위용질측득색보주적이론탑판수위2337／m，여도복칠-（2，6-O-이무기-3-O-삼불을선기）-β-배호정（ DP-TFA-β-CD）적모세관주주효상근；연후연구저2충모세관주대분계위치이구체（여초기갑분、초기록분、이록분、이갑분화분이갑산이갑지）적분리성능．결과표명，타문대린／대、간／대취대분계화합물표현교호적분리능력，여이록분적위치이구체재HP-β-CD주상적분리인자분별위1.28화1.13，비DP-TFA-β-CD주적분리효과호．
A new capillary column was prepared by statically coating hydroxypropyl-β-cyclodextrin ( HP-β-CD) on-to inner surface of fused capillary and its theoretical plate number is measured to be 2 337 /m according to the liter-ature method, which is close to a commercial gas phase capillary column coated with heptakis-(2, 6-O-dipentyl-3-O-trifluoro acetyl)-β-cyclodextrin ( DP-TFA-β-CD) .Separations of some benzene positional isomers, namely, ni-trotoluene, chloronitrobenzene, dichlorobenzene, xylene, and dimethyl phthalate, were investigated on these two capillary columns by gas chromatography.The HP-β-CD and DP-TFA-β-CD columns show good separation abilities toward five selected analytes.Separation factors for dichlorobenzene on the HP-β-CD column are 1.28 and 1.13, respectively, which are better than the other.