建立了废水中J酸的高效液相色谱检测方法,并利用所建方法对J酸废水的处理进行控制分析.采用Krornasil-C18色谱柱分离,流动相为甲醇和水(含4 g/L的四丁基溴化铵)(体积比为35∶65),紫外检测波长为230 nm.结果表明,J酸的浓度在1.06~17.10 mg/L时线性关系良好(r=0.9996),相对标准偏差为1.03%.该方法简便快速,结果准确,重现性好,可为J酸废水的处理提供较好的中控分析.%A method for J acid(2-amino-5-naphthol-7-sulfonic acid)in wastewater with high performance liquid chromatog-raphy(HPLC)is established. The J acid in wastewater treatment process is analyzed using the established method. HPLC is performed on a Krornasil-C18 column,using methanol and water(containing 4 g/L tetrabutyl ammonium)(35∶65)as mobile phase and the detection wavelength of 230 nm. The results show that the calibration curve is linear in the range of 1.06~17.10 mg/L for concentration of J acid(r=0.999 6),precision is high,and its relative standard deviation is 1.92%. The method is rapid,accurate,and reproducible and can be used for quantitative analysis of J acid in wastewater and thus is provided as a good central control analysis method of treatment conditions of wastewater.
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