Determination of 17 kinds of neonicotinoid pesticides and their metabolites residues in water body sediment by ultra performance liquid chromatography-tandem mass spectrometry
A method is established for the determination of 17 neonicotinoid pesticides and their metabolites residues in water body sediment by ultra performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS)based on fully automatic accelerated solvent extraction.The mass concentration of 17 target substances shows a linear relationship with the corresponding peak area within a certain concentration range.Detection limits(3.143 s)of the method range from 0.000 7 to 0.002 2 μg·kg-1.The average recoveries at levels of 0.02,0.2,and 1.5 μg·kg-1 are in the range of 82.70%-114.30%,and RSDs are 1.4%-9.4%for intra-day precision,and 3.8%-9.7%for inter-day precision.
fully automatic accelerated solvent extractionneonicotinoid pesticidesultra performance liquid chromatography-tandem mass spectrometrywater body sediment
万方数据
维普
