32383x + 94868 y = 31532250x + 110620 y = 35269206x + 141208 R2 0.9986

32383x + 94868 y = 31532250x + 110620 y = 35269206x + 141208 R2 0.9986 0.9981 0.9998 0.9998 0.9995 0.9992 0.9988 0.999 LOQs (mg/kg) / / 0.01 0.01 0.01 0.01 0.01 0.01 LODs (mg
32383x + 94868 y = 31532250x + 110620 y = 35269206x + 141208 R2 0.9986 0.9981 0.9998 0.9998 0.9995 0.9992 0.9988 0.999 LOQs (mg/kg) / / 0.01 0.01 0.01 0.01 0.01 0.01 LODs (mg/kg) / / 0.0005 0.0005 0.0009 0.0009 0.0002 0.0002 ME / / -3.two -4.0 -3.six -3.7 9.1 eight.0Note: LOQ: limit of quantification; LOD: limit of detection; ME: matrix effect.Table 2. Recoveries and RSDs for FAUC 365 web dimethacarb in rice. Analytes Matrices Spiked Levels (mg/kg) 0.01 0.1 1 0.01 0.1 1 0.01 0.1 1 0.01 0.1 1 0.01 0.1 1 0.01 0.1 1 89.68 75.26 75.88 91.33 98.73 77.88 80.32 88.43 81.63 82.88 74.71 74.54 94.24 one hundred.46 84.37 73.09 83.05 76.61 Typical Recovery , Intraday RSD ( , n = 5) Day 1 4.67 four.35 five.05 5.21 two.85 two.23 1.61 1.19 three.18 1.54 three.55 4.66 5.48 1.95 1.58 two.04 1.13 two.12 Day two 89.47 79.ten 76.83 87.93 98.98 76.70 81.17 95.15 80.47 80.19 78.76 71.69 92.65 100.60 83.07 74.43 90.39 75.93 three.53 2.83 1.23 5.48 two.70 three.13 4.90 2.63 5.19 1.51 2.77 0.21 8.41 2.23 3.47 two.63 2.28 three.48 Day three 93.77 77.33 78.15 88.63 94.01 81.04 82.47 87.37 86.82 86.74 77.39 72.92 86.61 93.85 76.89 72.76 84.22 82.00 two.86 2.06 2.19 5.59 1.58 0.91 3.66 two.23 five.08 1.33 0.75 1.66 five.47 0.73 1.26 2.30 2.85 4.71 Interday RSD ( , n = 15) four.13 3.63 3.24 6.09 three.34 3.19 3.57 4.36 five.48 3.60 three.31 three.16 7.19 3.71 four.68 2.40 four.39 4.Rice StrawXMCRice HuskBrown RiceRice StrawMPMCRice HuskBrown RiceNote: RSD: relative normal deviation.3.3. Dissipation of Two Isomers of Dimethacarb in Two Sites PX-478 Protocol samples of rice straw had been collected right after spraying at two h, 1, 3, five, 7, ten, 14 and 21 days, as well as the XMC and MPMC residues inside the samples were analyzed. Based on the plotted dynamic dissipation curves, the kinetic equations of XMC in rice straw was Ct = 0.4470e-0.170t (Hunan, R2 = 0.91) and Ct = 0.3864e-0.164t (Heilongjiang, R2 = 0.74), with half-lives of four.08 days and four.23 days, respectively, along with the kinetic equation of MPMC in rice straw was Ct = 0.1414e-0.199t (Hunan, R2 = 0.93) and Ct = 0.0861e-0.188t (Heilongjiang, R2 = 0.71), with half-lives of 3.48 days and 3.69 days, respectively. Figure five shows the dissipation curves of XMC and MPMC in rice straw. The outcomes indicated that the degradation of XMC and MPMC in rice straw conformed to the first-order kinetic model (Equation (two)). Quite a few experimental benefits have shown that the price of pesticide dissipation in plants is affected by diverse regions and diverse environments. Our final results show that the half-lives of dimethacarb in rice straw in Heilongjiang and Hunan take place to be similar and dimethacarb dissipated quickly in rice straw (half-life five days). Nevertheless, the degradation rate of MPMC in rice straw was slightly quicker than that of XMC.Foods 2021, ten,curves of XMC and MPMC in rice straw. The outcomes indicated that the degradation of XMC and MPMC in rice straw conformed towards the first-order kinetic model (Equation (two)). Numerous experimental results have shown that the price of pesticide dissipation in plants is affected by distinct regions and distinctive environments. Our outcomes show that the halflives of dimethacarb in rice straw in Heilongjiang and Hunan occur to become similar9 and of 15 dimethacarb dissipated swiftly in rice straw (half-life 5 days). Even so, the degradation rate of MPMC in rice straw was slightly faster than that of XMC.Figure five. The dissipative curve of dimethacarb in rice straw. Figure five. The dissipative curve of dimethacarb in rice straw.3.four. Terminal Residues three.four. Terminal Residues Dimethacarb EC (50 ) was sprayed evenly from 750 g a.i./ha (the re.