Table 1 Mean recovery, relative standard deviation (RSD) and limit of detection (LOD) of OCPs.
Compound | Mean recovery (%) | Precision RSD (%) | LOD (ng/g) | LOQ (ng/g) | Calibration curve, r2 |
|---|---|---|---|---|---|
α-HCH | 95 | 0.5 | 0.002 | 0.005 | 0.9984 |
β-HCH | 94 | 1.5 | 0.002 | 0.006 | 0.9997 |
γ-HCH | 88 | 1.1 | 0.001 | 0.005 | 0.9982 |
δ-HCH | 81 | 1.3 | 0.001 | 0.008 | 0.9995 |
Heptachlor | 94 | 0.3 | 0.004 | 0.009 | 0.9996 |
Heptachlor epoxide Isomer | 92 | 0.1 | 0.004 | 0.011 | 0.9978 |
α-chlordane | 84 | 1.6 | 0.002 | 0.009 | 0.9968 |
γ-chlordane | 82 | 1.5 | 0.001 | 0.008 | 0.9975 |
4,4'-DDT | 93 | 0.9 | 0.001 | 0.006 | 0.9993 |
4,4'-DDE | 89 | 0.3 | 0.002 | 0.006 | 0.9981 |
4,4'-DDD | 87 | 0.8 | 0.002 | 0.006 | 0.9979 |
Aldrin | 89 | 0.3 | 0.001 | 0.004 | 0.9988 |
Dieldrin | 96 | 0.9 | 0.001 | 0.006 | 0.9991 |
Endrin | 90 | 0.8 | 0.003 | 0.008 | 0.9985 |
Endrin Aldehyde | 93 | 0.5 | 0.002 | 0.005 | 0.9973 |
Endrin Ketone | 91 | 0.4 | 0.002 | 0.005 | 0.9993 |
Endosulfan-I (α) | 85 | 1.2 | 0.001 | 0.007 | 0.9982 |
Methoxychlor | 85 | 1.2 | 0.001 | 0.007 | 0.9982 |
