Table 2 Mean recoveries, RSDs, the linearity, regression coefficients of standard curves (r2), matrix effects, LOD and LOQ (μg/kg) of 25 pesticides in Zizania latifolia by LC-MS/MS.
Analyte | Zizania latifolia a | Inter-day RSDs | Linear equation | r 2 | Matrix effects | LOD | LOQ | ||
|---|---|---|---|---|---|---|---|---|---|
0.01 mg/kgb | 0.05 mg/kg | 0.10 mg/kg | |||||||
Abamectin | 89 (7) | 87 (5) | 83 (6) | 9 | y = 1.1 × 102x-1.5 × 102 | 0.9999 | 1.5 | 0.2 | 0.5 |
Acetamiprid | 117 (12) | 115 (10) | 109 (14) | 15 | y = 1.2 × 104x + 1.0 × 105 | 0.9966 | 1.1 | 0.2 | 0.6 |
Buprofezin | 91 (15) | 95 (16) | 87 (6) | 18 | y = 3.9 × 104x + 5.4 × 105 | 0.9903 | 1.1 | 0.3 | 1.0 |
Carbendazim | 81 (5) | 82 (2) | 87 (4) | 6 | y = 1.8 × 104x + 4.3 × 105 | 0.9980 | 0.7 | 0.3 | 1.0 |
Chlorantraniliprole | 118 (3) | 90 (2) | 110 (6) | 7 | y = 3.3 × 103x + 1.1 × 104 | 0.9993 | 1.1 | 0.4 | 1.1 |
Difenoconazole | 72 (8) | 107 (11) | 90 (13) | 14 | y = 7.4 × 103x + 2.2 × 103 | 1.0000 | 1.1 | 0.2 | 0.7 |
Diniconazole | 90 (3) | 107 (7) | 95 (8) | 10 | y = 1.4 × 103x + 8.7 × 103 | 0.9975 | 1.1 | 0.3 | 0.6 |
Emamectin Benzoate | 76 (8) | 75 (5) | 80 (8) | 10 | y = 4.3 × 104x + 2.3 × 105 | 0.9981 | 1.1 | 0.2 | 0.7 |
Fenaminosulf | 72 (11) | 75 (12) | 74 (8) | 14 | y = 1.2 × 102x + 1.3 × 103 | 0.9970 | 0.6 | 1.0 | 3.3 |
Flubendiamide | 88 (7) | 80 (4) | 72 (9) | 12 | y = 2.3 × 102x + 3.0 × 102 | 0.9954 | 1.3 | 0.2 | 0.7 |
Hexaconazole | 89 (14) | 88 (8) | 77 (6) | 18 | y = 2.9 × 103x + 1.9 × 104 | 0.9978 | 1.0 | 0.8 | 2.5 |
Imidacloprid | 91 (9) | 96 (8) | 91 (10) | 16 | y = 2.7 × 103x + 1.4 × 104 | 0.9990 | 1.1 | 0.5 | 1.5 |
Iprodione | 88 (4) | 87 (7) | 80 (4) | 12 | y = 1.4 × 103x + 1.7 × 104 | 0.9910 | 0.9 | 0.3 | 0.8 |
Isoprothiolane | 117 (4) | 93 (6) | 91 (10) | 19 | y = 2.3 × 104x + 3.5 × 105 | 0.9938 | 1.0 | 0.3 | 0.9 |
Nitenpyram | 85 (15) | 87 (8) | 89 (10) | 16 | y = 1.1 × 104x + 1.2 × 105 | 0.9937 | 0.8 | 0.3 | 1.1 |
Prochloraz | 105 (8) | 100(5) | 107 (6) | 9 | y = 4.2 × 104x + 1.2 × 105 | 0.9994 | 1.1 | 0.2 | 0.6 |
Procymidone | 82 (2) | 81 (6) | 90 (5) | 8 | y = 3.5 × 102x-22 | 0.9984 | 1.1 | 0.8 | 2.5 |
Propiconazole | 81 (2) | 73 (5) | 95 (9) | 11 | y = 1.1 × 104x + 7.0 × 104 | 0.9974 | 1.0 | 0.2 | 0.7 |
Pymetrozine | 87(2) | 85 (2) | 90 (7) | 8 | y = 2.6 × 104x-2.3 × 105 | 0.9955 | 0.9 | 0.4 | 1.2 |
Tebuconazole | 95 (7) | 96 (6) | 85 (5) | 13 | y = 7.5 × 102x + 1.6 × 103 | 0.9997 | 1.1 | 0.2 | 0.7 |
Thiamethoxam | 80 (4) | 80 (2) | 91 (6) | 8 | y = 2.5 × 103x + 2.1 × 104 | 0.9966 | 1.0 | 0.3 | 1.0 |
Thiophanate methyl | 99 (2) | 91 (8) | 93 (8) | 10 | y = 1.6 × 104x + 9.9 × 104 | 0.9969 | 1.2 | 0.3 | 1.0 |
Triadimefon | 115 (11) | 79 (12) | 75 (10) | 17 | y = 3.5 × 104x + 2.7 × 104 | 1.0000 | 1.1 | 0.2 | 0.6 |
Triazophos | 110 (3) | 75 (8) | 72 (8) | 11 | y = 2.9 × 104x + 3.5 × 105 | 0.9942 | 1.1 | 0.2 | 0.7 |
Tricyclazole | 114 (5) | 77 (4) | 97 (7) | 13 | y = 1.2 × 104x + 1.3 × 105 | 0.9958 | 1.0 | 0.4 | 1.3 |
