Research Article
Rapid Simultaneous Determination of 43 Pesticide Residues in Schizonepeta tenuifolia by Gas Chromatography Mass Spectrometry
Table 4
Regression equations, determination coefficients (R2), LODs, and LOQs of pesticides.
| Pesticide | Regression equation | R2 | LOD (mg kg−1) | LOQ (mg kg−1) |
| Dichlorvos | Y = 6.88 × 104X-4 313.8 | 0.996 3 | 0.001 8 | 0.005 8 | Carbofuran | Y = 3.18 × 104X-765 | 0.999 4 | 0.003 9 | 0.012 9 | Methamidophos | Y = 4.90 × 103X-664 | 0.995 9 | 0.012 2 | 0.040 7 | Ethoprophos | Y = 3.79 × 104X-1 022.7 | 0.999 4 | 0.002 1 | 0.007 0 | Omethoate | Y = 1.73 × 103X-553.6 | 0.998 4 | 0.013 5 | 0.045 1 | Phorate | Y = 3.49 × 104X-1 189.7 | 0.997 5 | 0.002 0 | 0.006 7 | Hexachlorobenzene | Y = 3.87 × 104X-765.3 | 0.997 8 | 0.001 1 | 0.003 8 | α-BHC | Y = 1.78 × 104X-605.8 | 0.997 1 | 0.002 4 | 0.008 0 | Monocrotophos | Y = 1.35 × 104X-2 173.5 | 0.999 3 | 0.011 1 | 0.037 1 | Quintozene | Y = 1.03 × 104X-514.6 | 0.998 4 | 0.001 2 | 0.003 9 | γ-BHC | Y = 2.26 × 104X-969.5 | 0.996 7 | 0.002 3 | 0.007 7 | Dimethoate | Y = 2.93 × 104X-2 078.2 | 0.995 3 | 0.003 4 | 0.011 3 | Acetochlor | Y = 3.75 × 104X-135 5 | 0.998 6 | 0.003 9 | 0.012 9 | β-BHC | Y = 1.04 × 104X-386.7 | 0.997 9 | 0.001 6 | 0.005 5 | Prometryn | Y = 4.61 × 104X-1 485.4 | 0.998 2 | 0.004 8 | 0.015 8 | δ-BHC | Y = 1.68 × 104X-596.9 | 0.998 2 | 0.001 7 | 0.005 7 | Metalaxyl | Y = 2.65 × 104X-1 004.2 | 0.998 8 | 0.002 6 | 0.008 7 | Chlorothalonil | Y = 6.88 × 104X-11 033.2 | 0.996 4 | 0.038 0 | 0.012 7 | Aldrin | Y = 1.83 × 104X-666.9 | 0.999 4 | 0.003 8 | 0.012 5 | Chlorpyrifos | Y = 1.94 × 104X-976.2 | 0.995 2 | 0.002 2 | 0.007 3 | Parathion | Y = 1.47 × 104X-859.9 | 0.995 6 | 0.002 8 | 0.009 2 | Dicofol | Y = 1.00 × 106X-2 599.8 | 0.997 6 | 0.003 0 | 0.009 9 | Pendimethalin | Y = 3.45 × 104X-2 108.9 | 0.997 1 | 0.007 3 | 0.024 4 | cis-Heptachlor epoxide | Y = 1.94 × 104X-690.5 | 0.997 5 | 0.001 9 | 0.006 3 | trans-Heptachlor epoxide | Y = 2.86 × 103X-64.6 | 0.997 6 | 0.001 2 | 0.004 1 | cis-Chlordane | Y = 3.27 × 104X-1 264.7 | 0.995 6 | 0.001 9 | 0.006 2 | trans-Chlordane | Y = 2.49 × 104X-807.7 | 0.997 5 | 0.001 2 | 0.004 0 | Thiamethoxam | Y = 1.00 × 104X-461 | 0.998 6 | 0.002 7 | 0.009 2 | pp'-DDE | Y = 4.88 × 104X-1 159.8 | 0.996 9 | 0.006 2 | 0.020 7 | Dieldrin | Y = 8.88 × 103X-347.5 | 0.997 1 | 0.003 0 | 0.010 1 | Fludioxonil | Y = 2.25 × 104X-936.1 | 0.998 4 | 0.010 0 | 0.033 3 | op'-DDT | Y = 6.47 × 104X-3 256.6 | 0.999 4 | 0.005 1 | 0.016 9 | Nitrofen | Y = 1.95 × 104X-1 081.4 | 0.995 3 | 0.001 4 | 0.004 7 | pp'-DDD | Y = 9.49 × 104X-2 277.2 | 0.997 9 | 0.003 6 | 0.011 9 | β-Endosulfan | Y = 3.04 × 103X-17.7 | 0.998 5 | 0.001 3 | 0.004 4 | Propiconazole | Y = 2.19 × 104X-882.9 | 0.998 3 | 0.001 1 | 0.037 0 | pp'-DDT | Y = 4.84 × 104X-1 800.2 | 0.999 0 | 0.002 6 | 0.008 5 | Bifenthrin | Y = 1.69 × 104X-2 085.6 | 0.998 1 | 0.007 8 | 0.026 0 | Fenpropathrin | Y = 3.28 × 104X-1 073.1 | 0.996 4 | 0.005 8 | 0.019 3 | Cyhalothrin | Y = 4.81 × 104X-2 338.9 | 0.995 8 | 0.001 5 | 0.004 9 | Cypermethrin | Y = 1.78 × 104X-963.2 | 0.997 7 | 0.001 9 | 0.006 3 | Fenvalerate | Y = 2.24 × 104X-1 585.6 | 0.995 3 | 0.001 3 | 0.004 3 | Difenoconazole | Y = 5.74 × 104X-2 995.7 | 0.997 6 | 0.005 3 | 0.017 7 |
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