本文用自制的环氧基不锈钢搅拌萃取棒结合超声脱附-液相色谱(LC)建立了测定水中萘的新方法。通过对萃取时间、搅拌速度、解吸时间等条件的优化,最终确定该法测定萘含量的最优条件为搅拌萃取速度250r/min,搅拌萃取时间40min,超声解吸10min,加盐量0.01g/5m L。该法对萘的加标回收率为77%-102%,相对标准偏差(RSD)为4.9%-10%,并确定该法的检出限为0.005mg/L,线性范围为0.005mg/L-5 mg/L。该法简单、快速、灵敏,可以满足痕量分析的需求。 In this paper, a new method for the determination of naphthalene in water was established by using a homemade epoxy-based stainless steel stirring extraction rod combined with ultrasonic desorption-liquid chromatography (LC). The optimal conditions for the determination of naphthalene content were as follows: stirring speed 250r / min, stirring time 40min, ultrasonic desorption 10min, salt content 0.01g / 5m L. The recovery of naphthalene was 77% -102% and the relative standard deviation (RSD) was 4.9% -10%. The detection limit of this method was 0.005 mg / L with a linear range of 0.005 mg / L -5 mg / L. The method is simple, fast and sensitive to meet the needs of trace analysis.