Determination of 26 Kinds of Organophosphorus Pesticide Residues of Authentic Medicinal Materials Citrus reticulata in Three Gorges Reservoir
The residues of 26 organic pesticides in Citrus reticulata from Three Gorges reservoir were determined by LC-MS/MS method.The results showed that the linear range of 26 organic pesticides was 10～250 ng/mL(r2 is 0.996 7～0.999 9),the recoveries were 69.8%～124.7%,the RSD was 0.89%～9.10%(n=6),and the limits of quantification were 2.5～5.0 μg/kg.Among the 56 batches of Citrus reticulata,the use of pesticides was the most complex,with some as many as 7 kinds.The highest detection rate was 64.9%,the mass fraction was 10～912 μg/kg,and the detection rate was 64.9%,indicating that the method was fast,sensitive,stable and reliable,and could be used for the rapid detection of organic pesticides in Chinese medicinal materials.
authentic medicinal materialsLC-MS/MSCitrus reticulatacurrent situation of pesticide pollutionThree Gorges Res-ervoir
NETL
NSTL
万方数据
