Table 1.
LC-MS/MS and GC-MS(/MS) analysis of pesticide quantities determined and risk assessment according to Turkish Codex. Each sample was analyzed in triplicate. Results are given as mean ± standard deviation (mg/kg).
| City Where the Tea Sample was Taken | Origin of Tea Sample | Detected Pesticide Compounds | Results/Measurement | Measurement Limit (LOQ) | Uncertainty | Compliance with Regulation | Analysis Method |
|---|---|---|---|---|---|---|---|
| Mardin | Sri Lanka | Diuron | 0.016 ± 0.008 | 0.010 | 0.008 | Ok | LC-MS/MS |
| Mardin | Sri Lanka | Diuron | 0.021 ± 0.007 | 0.010 | 0.014 | Not ok | LC-MS/MS |
| Mardin | Sri Lanka | Diuron | 0.011 ± 0.006 | 0.010 | 0.005 | Ok | LC-MS/MS |
| Mardin | Sri Lanka | Diuron | 0.017 ± 0.006 | 0.010 | 0.011 | Not ok | LC-MS/MS |
| Van | Iran | Ethion | 0.013 ± 0.007 | 0.010 | 0.006 | Ok | GC-MS & GC MS/MS |
| Van | Iran | Cypermethrin | 0.014 ± 0.007 | 0.010 | 0.007 | Ok | GC-MS & GC MS/MS |
| Van | Iran | Diuron | 0.011 ± 0.006 | 0.010 | 0.005 | Ok | LC-MS/MS |
| Van | Iran | Ethion | 0.017 ± 0.009 | 0.010 | 0.008 | Ok | GC-MS & GC MS/MS |
| Van | Iran | Thiacloprid | 0.021 ± 0.011 | 0.010 | 0.010 | Ok | LC-MS/MS |
| Van | Iran | Thiamethoxam | 0.050 ± 0.025 | 0.010 | 0.025 | Not ok | LC-MS/MS |
| Van | Iran | Ethion | 0.019 ± 0.009 | 0.010 | 0.010 | Ok | GC-MS & GC MS/MS |
| Thiacloprid | 0.025 ± 0.013 | 0.010 | 0.012 | Not ok | LC-MS/MS | ||
| Thiamethoxam | 0.054 ± 0.021 | 0.010 | 0.033 | Not ok | LC-MS/MS | ||
| Van | Iran | Thiamethoxam | 0.069 ± 0.035 | 0.010 | 0.034 | Not ok | LC-MS/MS |
| Van | Iran | Cypermethrin | 0.014 ± 0.007 | 0.010 | 0.007 | Ok | GC-MS & GC MS/MS |
| Van | Iran | Ethion | 0.017 ± 0.009 | 0.010 | 0.008 | Ok | GC-MS & GC MS/MS |
| Van | Iran | Fenpyroximate | 0.012 ± 0.006 | 0.010 | 0.006 | Ok | LC-MS/MS |
| Van | Iran | Thiacloprid | 0.036 ± 0.018 | 0.010 | 0.018 | Not ok | LC-MS/MS |
| Van | Iran | Acetamiprid | 0.062 ± 0.031 | 0.010 | 0.031 | Not ok | LC-MS/MS |
| Cypermethrin | 0.027 ± 0.014 | 0.010 | 0.013 | Not ok | GC-MS & GC MS/MS | ||
| Van | Iran | Acetamiprid | 0.033 ± 0.017 | 0.010 | 0.016 | Not ok | LC-MS/MS |
| Cypermethrin | 0.017 ± 0.009 | 0.010 | 0.008 | Ok | GC-MS & GC MS/MS | ||
| Ethion | 0.012 ± 0.006 | 0.010 | 0.006 | Ok | GC-MS & GC MS/MS | ||
| Flubendiamide | 0.015 ± 0.008 | 0.010 | 0.007 | Ok | LC-MS/MS | ||
| Thiacloprid | 0.080 ± 0.040 | 0.010 | 0.040 | Not ok | LC-MS/MS | ||
| Thiamethoxam | 0.076 ± 0.038 | 0.010 | 0.038 | Not ok | LC-MS/MS | ||
| Van | Iran | Ethion | 0.019 ± 0.010 | 0.010 | 0.009 | Ok | GC-MS & GC MS/MS |
| Imidacloprid | 0.023 ± 0.012 | 0.010 | 0.011 | Not ok | LC-MS/MS | ||
| Thiacloprid | 0.058 ± 0.029 | 0.010 | 0.029 | Not ok | LC-MS/MS | ||
| Thiamethoxam | 0.076 ± 0.038 | 0.010 | 0.038 | Not ok | LC-MS/MS | ||
| Sirnak | Sri Lanka (Kuwait) | Diuron | 0.012 ± 0.006 | 0.010 | 0.006 | Ok | LC-MS/MS |
| Siirt |
Sri Lanka |
Ethion | 0.011 ± 0.006 | 0.010 | 0.005 | Ok | GC-MS & GC MS/MS |
| Thiacloprid | 0.011 ± 0.006 | 0.010 | 0.005 | Ok | LC-MS/MS | ||
| Thiamethoxam | 0.018 ± 0.009 | 0.010 | 0.009 | Ok | LC-MS/MS | ||
| Siirt | Iran | Diuron | 0.028 ± 0.014 | 0.010 | 0.014 | Not ok | LC-MS/MS |
| Diyarbakır |
Sri Lanka | Deltamethrin | 0.029 ± 0.015 | 0.010 | 0.014 | Not ok | LC-MS/MS |
| Thiacloprid | 0.047 ± 0.024 | 0.010 | 0.023 | Not ok | LC-MS/MS | ||
| Thiamethoxam | 0.050 ± 0.025 | 0.010 | 0.025 | Not ok | LC-MS/MS | ||
| Diyarbakır | Iran | Hexythiazox | 0.015 ± 0.008 | 0.010 | 0.007 | Ok | LC-MS/MS |
| Thiacloprid | 0.027 ± 0.014 | 0.010 | 0.013 | Not ok | LC-MS/MS | ||
| Thiamethoxam | 0.052 ± 0.026 | 0.010 | 0.026 | Not ok | LC-MS/MS | ||
| Batman | Iran | Ethion | 0.032 ± 0.016 | 0.010 | 0.016 | Not ok | GC-MS & GC MS/MS |
| Thiacloprid | 0.086 ± 0.043 | 0.010 | 0.043 | Not ok | LC-MS/MS | ||
| Thiamethoxam | 0.076 ± 0.038 | 0.010 | 0.038 | Not ok | LC-MS/MS | ||
| Gaziantep | India | Ethion | 0.021 ± 0.011 | 0.010 | 0.010 | Ok | GC-MS & GC MS/MS |
| Thiacloprid | 0.012 ± 0.006 | 0.010 | 0.006 | Ok | LC-MS/MS | ||
| Thiamethoxam | 0.034 ± 0.017 | 0.010 | 0.017 | Not ok | LC-MS/MS | ||
| Gaziantep | Sri Lanka | Ethion | 0.020 ± 0.010 | 0.010 | 0.010 | Ok | GC-MS & GC MS/MS |
| Sanliurfa | Sri Lanka | Diuron | 0.011 ± 0.006 | 0.010 | 0.005 | Ok | LC-MS/MS |
LOQ (mg/Kg); Limit of quantification; : Uncertainty (%); 95% Relative standard uncertainty at confidence level.