对氯甲苯和对氯苯甲醛的气相色谱法分离分析

Capillary Gas Chromatographic Separation and Analysis of p-Chlorotoluene and p-Chlorobenzaldehyde

建立了用气相色谱同时测定对氯甲苯和对氯苯甲醛的方法。选用HP-INNOWAX毛细管色谱柱,以氯苯为内标物,在选定的色谱条件下,反应物对氯甲苯和产物对氯苯甲醛均有较广的线性范围,测定结果标准偏差均为0.44%,相对标准偏差分别为0.59%和1.69%。该方法快速、简便,重复性较好,适用于常规的检测分析。

A simultaneous analysis of p-chlorotoluene and p-chlorobenzaldehyde with GC was constructed. HP-INNOWAX capillary chromatic pillar was used,and quantitative analysis was carried out using chlorobenzene as the internal standard. The linear ranges for both p-chlorotoluene and p-chlorobenzaldehyde were wide. The results indicated that this method was rapid, accurate and reproductive and available to routine analysis. The standard deviation is 0. 44%, with the rate of recovery of 0.59% and 1.69% respectively.