Rapid Simultaneous Determination of 43 Pesticide Residues in Schizonepeta tenuifolia by Gas Chromatography Mass Spectrometry

Figure 1

GC-MS-SIM chromatogram of standard mixture of the 43 pesticides (0.5 mg L⁻¹): 1: dichlorvos, 2: carbofuran, 3: methamidophos, 4: ethoprophos, 5: omethoate, 6: phorate, 7: hexachlorobenzene, 8: α-BHC, 9: monocrotophos, 10: quintozene, 11: γ-BHC, 12: dimethoate, 13: acetochlor, 14: β-BHC, 15: prometryn, 16: δ-BHC, 17: metalaxyl, 18: chlorothalonil, 19: aldrin, 20: chlorpyrifos, 21: parathion, 22: dicofol, 23: pendimethalin, 24: cis-heptachlor epoxide, 25: trans-heptachlor epoxide, 26: cis-chlordane, 27: trans-chlordane, 28: thiamethoxam, 29: pp'-DDE, 30: dieldrin, 31: fludioxonil, 32: op'-DDT, 33: nitrofen, 34: pp'-DDD, 35: β-endosulfan, 36: propiconazole, 37: pp'-DDT, 38: bifenthrin, 39: fenpropathrin, 40: cyhalothrin, 41: cypermethrin, 42: fenvalerate, and 43: difenoconazole.