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本文用薄层电池-液相色谱电分析仪的新技术,研究了几种染料中间体:对氨基苯磺酸、联苯胺、邻甲联苯胺、对氨基偶氮苯四种含氮化合物的混合体系的连续分离和检测。选择了以甲醇∶0.1N HAc—NaAc(pH4.6)=75∶25(体积比)的溶液为流动相,流速为0.90ml/min的实验条件。结果表明:进样体积为10μl最低检测量为1—2ppb。方法的精密度±0.1。工作曲线线性范围1×10~(-4)M—1×10~(-7)M。整个分离检测在八分半钟即可完成,方法的回收率92—106％。
In this paper, thin-layer battery - liquid chromatography electrical analysis of new technologies, the study of several dye intermediates: sulfanilic acid, benzidine, o-anisidine, p-amino azobenzene mixture of four nitrogen compounds System of continuous separation and testing. The experimental conditions were as follows: methanol: 0.1N HAc-NaAc (pH 4.6) = 75:25 (volume ratio) as the mobile phase and flow rate of 0.90ml / min. The results showed that: the injection volume of 10μl minimum detection of 1-2 ppb. The precision of the method is ± 0.1. The linear range of working curve is 1 × 10 ~ (-4) M-1 × 10 ~ (-7) M. The entire separation test can be completed in eight and a half minutes, the recovery rate of 92-106%.