Determination of 10 Pesticide Residues in Pepper by QuEChERS Combined with Gas Chromatography-Tandem Mass Spectrometry
In order to establish a method for the rapid detection of 10 pesticide residues in pepper,10 pesticides in pepper were extracted and purified by QuEChERS method.The purified solution was separated by gas chromatograph,and 10 pesticides were quantitatively analyzed by triple quadrupole mass spectrometer.The results showed that the correlation coefficients of 10 pesticides in the range of 10～500 μg·L-1 were more than 0.995,and the linear relationship was good.The limits of detection were 0.7～2.8 μg·kg-1,and the limits of quantitation were 2.3～9.3 μg·kg-1.The average recoveries of 10 pesticides were 84.4%～117.2%at the spiking levels of 10 μg·kg-1,20 μg·kg-1,and 100 μg·kg-1 with RSD at the range of 0.6%～11.7%.The results indicat that the method can be used for the rapid detection of 10 pesticide residues in pepper.
QuEChERSgas chromatography-tandem mass spectrometrypepperpesticide residues
NETL
NSTL
万方数据
