苯、甲苯和二甲苯的高效液相色谱分析方法分析

method has been developed for separation and detection of benzene, toluene and xylene by high performance liquid chromatography with Kromasil C18 column(5μm,250mm×4.6mm). When using methonal-water as mobile phase and 210nm as detection wavelength, it has presented good linear relationship as 0.1～7.6mg/mL、0.06～6.8mg/mL and 0.1～7.5mg/mL for benzene, toluene and xylene, respectively. The method we proposed has relatively lower limit of detection as 1.25μg/mL、0.67μg/mL and 1.21μg/mL, respectively. The method is convenient, reliable and can be applied in separation and quantitive analysis of benzene, toluene and xylene.