In order to make the detection of benzo[a]pyrene more simpler and efficient,the method of alumina column chromatoid-liquid chromatography for the determination of benzo[a]pyrene is optimized,the detection of benzo[a]pyrene in drinking water and source water is conducted by liquid liquid extraction chromatography.The results show that under the chromatographic conditions of column flow rate of 1.00 mL·min-1,volume ratio of methanol to water of mobile phase of 8.5∶1.5,column temperature of 30℃,injection volume of 10.00 μL and detection wavelength of excitation wavelength of 303 nm and emission wavelength of 425 nm,the detection limit,precision,accuracy and recovery rate of benzo[a]pyrene in drinking water and source water can meet the requirements of GB/T 5750.8-2023.Compared to alumina column chromatography and solid-phase extraction,liquid-liquid extraction has the advantages of simple operation,high precision and accuracy,and good repeatability,stronger operability and wide application range.
关键词
高效液相色谱法/苯并[a]芘/液液萃取
Key words
high performance liquid chromatography/benzo[a]pyrene/liquid-liquid extraction
维普
万方数据