Table 2.
Limit of detection (LOD), limit of quantification (LOQ), mean recovery (level 0.1 μg g−1), relative standard deviation (RSD), and calibration curve (r 2) for organochlorine pesticides in plant tissue (root, stem, and leaf) and soil samples.
| OCPs | Plant tissue (root, stem, and leaf) | Soil | ||||||
|---|---|---|---|---|---|---|---|---|
| LOD (μg L−1) | LOQ (μg L−1) | Precision (RSD) | Recovery (%) | LOQ (μg g−1) | Precision (RSD) | Recovery (%) | Calibration curve r 2 | |
| (1) α-HCH | 0.002 | 0.007 | 8.5 | 95 | 0.008 | 8.8 | 105 | 0.9986 |
| (2) β-HCH | 0.001 | 0.008 | 6.7 | 82 | 0.007 | 6.4 | 99 | 0.9997 |
| (3) γ-HCH | 0.002 | 0.006 | 10.3 | 95 | 0.005 | 5.9 | 85 | 0.9982 |
| (4) Chlorpyrifos | 0.005 | 0.01 | 4.8 | 92 | 0.01 | 6.1 | 77 | 0.9995 |
| (5) Heptachlor | 0.001 | 0.005 | 7.2 | 81 | 0.008 | 7.2 | 75 | 0.9979 |
| (6) Aldrin | 0.001 | 0.007 | 9.1 | 88 | 0.01 | 3.9 | 91 | 0.9993 |
| (7) Heptachlor epoxide | 0.005 | 0.01 | 6.3 | 91 | 0.009 | 5.2 | 125 | 0.9981 |
| (8) Dieldrin | 0.002 | 0.006 | 4.9 | 82 | 0.01 | 6.0 | 93 | 0.9993 |
| (9) Trans-chlordane | 0.003 | 0.007 | 6.6 | 94 | 0.007 | 5.8 | 88 | 0.9978 |
| (10) o,p′-DDE | 0.002 | 0.005 | 7.1 | 90 | 0.008 | 7.3 | 97 | 0.9996 |
| (11) Endrin | 0.002 | 0.005 | 8.3 | 93 | 0.01 | 6.4 | 81 | 0.9988 |
| (12) o,p′-DDT | 0.002 | 0.005 | 3.9 | 83 | 0.01 | 5.9 | 97 | 0.9985 |
| (13) p,p′-DDT | 0.002 | 0.005 | 8.2 | 89 | 0.01 | 3.7 | 79 | 0.9982 |
| (14) Diclofop-methyl | 0.005 | 0.008 | 6.3 | 95 | 0.01 | 10.5 | 84 | 0.9991 |
| (15) 4,4′-Methoxychlor | 0.004 | 0.01 | 5.5 | 89 | 0.01 | 8.4 | 97 | 0.9975 |