Table 1 Retention times, quantitative and qualitative ions pair, collision energies for the tested pesticides in SRM mode.
Pesticide | Tr (min) | Quantitative ion pair, m/z (CEa, eV) | Qualitative ion pair, m/z (CEa, eV) |
|---|---|---|---|
Acephate | 7.41 | 94 > 64(8) | 136 > 42.1(8), 136 > 94(12) |
Azoxystrobin | 21.49 | 344.1 > 156(34) | 344.1 > 171.9(36), 344.1 > 329(14) |
Chlordimeform | 10.26 | 117.1 > 89.8(18) | 181.1 > 140(16), 196 > 181.1(8) |
Chlorfenapyr | 16.57 | 136.9 > 102(12) | 248.9 > 112(24), 248.9 > 137.1(18) |
Chlorpyrifos-ethyl | 14.30 | 196.7 > 107(36) | 196.7 > 168.9(12), 313.9 > 257.9(12) |
Coumaphos | 19.27 | 209.9 > 119(22) | 209.9 > 182(10), 226 > 163(18) |
Cyfluthrin I–IVa | 19.51 (peak1) | 163 > 91.1(12) | 163 > 127(6), 226 > 206.1(12) |
19.58 (peak2) | 163 > 91.1(12) | 163 > 127(6), 226 > 206.1(12) | |
19.63 (peak3) | 163 > 91.1(12) | 163 > 127(6), 226 > 206.1(12) | |
19.65 (peak4) | 163 > 91.1(12) | 163 > 127(6), 226 > 206.1(12) | |
Cyhalothrin I–IIa | 18.52 (peak1) | 180.9 > 152(22) | 197.1 > 141.1(10), 207.9 > 180.9(8) |
18.6 (peak2) | 180.9 > 152(22) | 197.1 > 141.1(10), 207.9 > 180.9(8) | |
Cypermethrin I–IVa | 19.77 (peak1) | 163 > 91.1(12) | 163 > 127.1(6) |
19.84 (peak2) | 163 > 91.1(12) | 163 > 127.1(6) | |
19.89 (peak3) | 163 > 91.1(12) | 163 > 127.1(6) | |
19.92 (peak4) | 163 > 91.1(12) | 163 > 127.1(6) | |
Dicofol | 14.70 | 111 > 74.9(12) | 139 > 111(12), 250.9 > 139(12) |
Difenoconazole I–IIa | 20.02 (peak1) | 265 > 139(36) | 265 > 202.1(16), 323 > 265(14) |
20.09 (peak2) | 265 > 139(36) | 265 > 202.1(16), 323 > 265(14) | |
Dimethoate | 11.00 | 87 > 42.1(10) | 93 > 63(8), 125 > 79(8) |
Endosulfan I–IIa | 15.96 (peak1) | 194.7 > 125(22) | 194.7 > 159.4(8), 240.6 > 205.9(14) |
16.92 (peak2) | 158.9 > 123(12) | 194.7 > 159(8), 240.6 > 205.8(12) | |
Ethoprophos | 10.02 | 157.9 > 96.9(16) | 157.9 > 113.9(6), 200 > 158(6) |
Fenitrothion | 13.88 | 125 > 79(8) | 277 > 109(16), 277 > 260(6) |
Fenpropathrin | 18.10 | 97.1 > 55.1(6) | 181 > 151.9(22) |
Fenvalerate | 20.65 | 125 > 89(18) | 167 > 89(32), 167 > 125(10) |
Fipronil | 15.20 | 366.9 > 212.9(28) | 366.9 > 244.9(20), 368.8 > 214.9(30) |
Fluvalinate I–IIa | 20.62 (peak1) | 180.8 > 152.1(22) | 250 > 55.1(16), 250 > 199.9(18) |
20.68 (peak2) | 180.8 > 152.1(22) | 250 > 55.1(16), 250 > 199.9(18) | |
Isazophos | 11.96 | 118.9 > 76(18) | 161 > 119(8), 161 > 146(6) |
Isocarbophos | 14.62 | 121.1 > 65(14) | 136 > 69(30), 136 > 108(12) |
Isofenphos-methyl | 14.96 | 199 > 65(34) | 199 > 121(10), 241.1 > 121.1(20) |
malathion | 14.13 | 92.8 > 63(8) | 125 > 79(8),173.1 > 99(12) |
Methamidophos | 5.12 | 141 > 64(18) | 141 > 79(20), 141 > 94.8(8) |
Omethoate | 9.55 | 110 > 79(10) | 110 > 80(8), 156 > 110(8) |
Parathion (ethyl) | 14.51 | 109 > 81(10) | 124.9 > 97(6), 291 > 109(12) |
Parathion-methyl | 13.11 | 124.9 > 47(12) | 124.9 > 79(6), 263 > 109(12) |
Pendimethalin | 15.07 | 252.1 > 161(14) | 252.1 > 162(8), 252.1 > 191.3(8) |
Phorate | 10.63 | 75 > 47(8) | 121 > 65(8), 262 > 75(8) |
Profenofos | 16.26 | 296.7 > 268.9(10) | 336.9 > 266.9(12), 336.9 > 308.9(8) |
Pyridaben | 19.29 | 147.1 > 117.1(20) | 147.1 > 119.1(8), 147.1 > 132.1(12) |
Pyrimethanil | 11.80 | 198.1 > 117.9(30) | 198.1 > 157.6(18), 198.1 > 182.9(14) |
Sulfotep | 10.41 | 202 > 145.9(10) | 265.9 > 145.9(15), 322 > 202(10) |
Terbufos | 11.52 | 230.9 > 128.9(22) | 230.9 > 174.9(12), 230.9 > 203(8) |
Triazophos | 17.17 | 161 > 105.7(12) | 161 > 134.1(8), 172.1 > 77.1(25) |
