目的建立一次性纸杯中挥发性酚的超声波提取方法。方法氢氧化钠溶液作提取液,超声波提取后4-氨基安替比林光度法测定。结果最佳提取酸碱度为pH=12,最佳提取温度为50℃,最佳提取时间为40～50min。相对标准偏差(RSD)在1.7%～3.5%之间,回收率在93.7%～101.3%之间。结论该方法简单、准确、快速,可用于一次性纸杯中挥发性酚的常规检测。 Objective To establish a disposable paper cup of volatile phenol extraction method. Methods Sodium hydroxide solution was used as the extract, and ultrasonic extraction was used to determine 4-aminoantipyrine. Results The best extraction pH value was 12, the best extraction temperature was 50 ℃, the best extraction time was 40 ~ 50min. The relative standard deviations (RSD) ranged from 1.7% to 3.5%, and the recoveries ranged from 93.7% to 101.3%. Conclusion The method is simple, accurate and rapid and can be used for routine detection of volatile phenol in disposable paper cups.