Determination of Pesticide Residues in Grapes and Tomatoes by High Resolution Mass-spectrometry
A method for determining the 20 pesticides (azoxystrobin, boscalid, chlorpyrifos, cyprodinil, diazinon, dimethoate, fluazifop-P-butyl, malathion, metribuzin, penconazole, phosalone, pirimicarb, piri- miphos-methyl, prometryn, propargite, pyraclostrobin, pyrimethanil, triadimenol, triadimefon, trifloxystrobin) in grapes and tomatoes by high performance liquid chromatography with tandem quadrupole – time of flight mass spectrometry detector (HPLC-MS / TOF), using sample preparation QuEChERS. The range determines the content of pesticides by an addition of 10 g of the sample was 0.01–2 mg / kg. The relative standard deviation of the test results does not exceed 14%. The duration of the analysis of 30–40 minutes.
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