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本文用毛细管柱气相色谱法，测定邻二甲苯氧化制造苯酐所产生的尾气水洗液中各组份的含量。该方法简单快速，有较高的准确性，在尾气洗液回收顺丁烯二酸酐和其它苯酐副产品的生产中，对工艺指标的控制有重要的指导作用
In this paper, capillary gas chromatography, determination of ortho-xylene oxidation of phthalic anhydride produced by the exhaust water content of each component. The method is simple and fast with high accuracy. It plays an important guiding role in the control of process indexes in the recovery of maleic anhydride and other by-products of phthalic anhydride from tail gas washing liquid