建立了馒头中4种直链烷基苯磺酸钠高效液相色谱的测定方法。样品经甲醇和水提取后经过MAX复合阴离子交换小柱净化后,利用高效液相色谱进行检测。方法检出限为5μg/mL,4种直链烷基苯磺酸钠的检测波长为225nm,回收率为84.92%—99.28%,相对标准偏差为4.37%—5.93%。可以满足馒头中直链烷基苯磺酸钠检测的方法要求。 A method for the determination of four kinds of linear alkylbenzenesulfonates in steamed bread by high performance liquid chromatography was established. Samples were extracted with methanol and water after MAX composite anion exchange cartridge purification, the use of high performance liquid chromatography for testing. The detection limit was 5μg / mL. The detection wavelength of 4 linear alkylbenzenesulfonates was 225nm. The recoveries were 84.92% -99.28%. The relative standard deviations were 4.37% -5.93%. To meet the bread straight chain alkyl benzene sulfonate test method requirements.