Determination of 17 kinds of neonicotinoid pesticides and their metabolites residues in water body sediment by ultra performance liquid chromatography-tandem mass spectrometry
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.
关键词
全自动加速溶剂萃取/新烟碱类杀虫剂/超高效液相色谱-串联质谱法/水体沉积物
Key words
fully automatic accelerated solvent extraction/neonicotinoid pesticides/ultra performance liquid chromatography-tandem mass spectrometry/water body sediment
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