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建立了在ＰＥＧ－２０Ｍ毛细管色谱柱上分析对二甲苯中微量间二甲苯方法。确定了二者完全分离的条件，测定了间二甲辈相对质量校正因子。可用于准确定量对二甲苯中０．１％—２％间二甲苯。
A method for the determination of trace m-xylene in p-xylene on a PEG-20M capillary column was established. The conditions for the complete separation of the two were determined, and the relative mass correction factor was measured. It can be used to accurately quantify 0.1% -2% m-xylene in p-xylene.