Objectives To establish a method for simultaneous determination of 41 persistent organic pollutants in surface water by automatic solid phase extraction-gas chromatography-high resolution mass spectrometry(GC-HRMS).
Methods Water samples were extracted by HLB solid phase extraction, extracted with the mixture of dichloromethane and acetic ether, and the final eluate was then concentrated and detected.
Results The calibration curves of 41 persistent organic pollutants showed a good linearity in the range of (0.10~20.0) ng/L, and the correlation coefficients were more than 0.997. The detection limits(LOD)of method were in the range of (0.002~0.15) ng/L, and the limits of quantification(LOQ)of method were in the range of (0.005~0.51) ng/L. The spiked recoveries ranged from 70.4%~122.4% and the relative standard deviations ranged from 4.2%~19.4%.
Conclusions The method was simple, sensitive, selective and suitable for simultaneous determination of 41 persistent organic pollutants in surface water.
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