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程序升温气相色谱分析中稠(杂)环芳烃保留指数的测定
Determination of Aromatic-ring Retention Indices of Polynuclear Aromatics in Temperature-programmed Gas Chromatography
【摘要】 以l-4个芳环的苯、萘、菲、茄作为参照物,在OV-1毛细管柱上测定了百余个稠(杂)环芳烃在程序升温条件下的芳环系统保留指数,此种保留指数值受升温速率的影响很小.本实验条件下当升温速率由3℃%/min变为5℃/min时,保留指数变化最大的为0.77个单位,大多数小于0.6个单位.在OV-l填充柱上测定的结果相当吻合.
【Abstract】 The aromatic-ring retention indices of over 100 polynuclear aromatics were determined in the temperature-programmed gas chromatography on an OV-1 capillary column by using benzene, naphthalene, phenanthrene and chrysene as the reference compounds. The differences in the indices between data obtained at 3℃/min and 5℃/min programming rates are predominantly less than 0. 6 index unit, with a maximum of 0. 77 index unit. In addition, the indices are consistent very well with those measured on an OV-1 packed column, even at different temperature programs.
【Key words】 Polynuclear aromatics; retention indices; temperature-programmed gas chro-matography;
- 【文献出处】 分析化学 ,Chinese Journal of Analytieal Chemistry , 编辑部邮箱 ,1995年06期
- 【分类号】O657.7
- 【被引频次】1
- 【下载频次】82