ArticleSe pu = Chinese journal of chromatography2025
[Determination of 79 pesticide residues in fruits and vegetables by QuEChERS-ultra performance liquid chromatography-tandem mass spectrometry].
Article in Se pu = Chinese journal of chromatography, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Pesticide residues in fruits and vegetables are becoming a serious issue. These residues can affect the quality of agricultural products and people's health. Therefore， it has become crucial to effectively monitor and control pesticide residues in the food safety field. In this study， a rapid and effective QuEChERS-ultra performance liquid chromatography-tandem mass spectrometry （QuEChERS-UPLC-MS/MS） method was established for the simultaneous determination of 79 typical pesticides in vegetables and fruits， including organophosphates， carbamates， and pyrethroids. The pretreatment， UPLC， and MS/MS conditions were optimized. The fruit and vegetable samples were extracted with frozen acetonitrile after pulverization and homogenization， cleaned up by the QuEChERS method， filtered through a centrifugal membrane， and analyzed by UPLC-MS/MS. The separation was carried out on an ACQUITY UPLC HSS T3 column （100 mm×2.1 mm， 1.8 μm） with gradient elution. The aqueous and organic phases were water-methanol （98∶2， v/v） and methanol-water （98∶2， v/v） respectively， both with 5 mmol/L ammonium acetate and 0.1% formic acid. A triple quadrupole mass spectrometer was used in positive-ion electrospray ionization （ESI
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