| Level of spiking |
Percent recovery of HCH isomers ± SD* |
| From medium |
From soil |
| |
α-HCH |
β-HCH |
γ-HCH |
δ-HCH |
α-HCH |
β-HCH |
γ-HCH |
δ-HCH |
| 0.01 |
95.30 ± 5.68 |
94.57 ± 6.60 |
95.56 ± 7.32 |
96.32 ± 6.15 |
97.59 ± 5.74 |
95.72 ± 7.34 |
96.55 ± 6.63 |
96.17 ± 4.75 |
| 0.1 |
98.44 ± 4.41 |
96.92 ± 5.82 |
99.68 ± 4.85 |
98.45 ± 5.36 |
99.73 ± 5.38 |
98.20 ± 5.46 |
99.28 ± 5.08 |
98.83 ± 4.26 |
| 1 |
102.45 ± 4.08 |
101.35 ± 4.73 |
100.73 ± 3.77 |
101.93 ± 4.22 |
102.48 ± 4.09 |
100.05 ± 4.15 |
100.34 ± 2.32 |
100.76 ± 3.45 |
|
