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环己烷氧化废液经酸化、抽滤等预处理后 ,采用气相色谱直接进样法分离了样品中的 1 0种有机酸 ,并测定了其含量。测定废液中各有机酸的回收率在 95 %～ 1 0 5 %之间。气相色谱固定相为 5 %新戊二醇己二酸酯 +0 .2 %磷酸/1 0 1酸洗白色担体。
After acidification, filtration and other pretreatment of cyclohexane oxidation waste liquid, 10 kinds of organic acids in the sample were separated by gas chromatography direct injection method, and their contents were determined. Determination of the recovery of organic acids in the waste of 95% ~ 105%. GC stationary phase was 5% neopentyl glycol adipate +0 .2% phosphoric acid / 1 0 1 pickling white support.