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Abstract:
: An effective analytical method was established for the determination of 12 organophos⁃ phate esters(OPEs)in soil by solid phase extraction coupled with high performance liquid chromatog⁃ raphy-tandem mass spectrometry(HPLC-MS/MS)in this paper.After freeze-drying and sieving, the soil samples were ultrasonically extracted with acetone-hexane(1∶1,by volume),then puri⁃ fied with a CNWBOND Florisil SPE cartridge,and finally analyzed by HPLC-MS/MS.The internal standard method was used for quantification.There were good linear relationships for 12 OPEs in the concentration range of 0. 1-100 μg/L,with correlation coefficients(r2)greater than 0. 999 and de⁃ tection limits of 0. 004-0. 162 ng/g.The average recoveries at low,medium and high three spiked levels ranged from 67. 0% to 128%,with relative standard deviations of 1. 5%-9. 9%. 12 OPEs were detected simultaneously in 20 soil samples by the method established. All target compounds were detected with a total content of OPEs ranging from 5. 36 to 55. 2 ng/g(dry weight),the mean value of 23. 7 ng/g(dry weight)and the median value of 25. 0 ng/g(dry weight).This method is suit⁃ able for the determination of OPEs in soil samples with sensitive and reliable results. © 2023, China Association for Instrumental Analysis. All rights reserved.
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Journal of Instrumental Analysis
ISSN: 1004-4957
CN: 44-1318/TH
Year: 2023
Issue: 7
Volume: 42
Page: 825-832
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WoS CC Cited Count: 0
SCOPUS Cited Count: 2
ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 3
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