Research Article
The Potential of Graphene as an Adsorbent for Five Pesticides from Different Classes in Rape Oil Samples Using Dispersive Solid-Phase Extraction
Table 2
Effect of the desorbing solvent type on extraction efficacy of the five pesticides from rape oil samples.
| Pesticide | Extraction recovery (%), | Acetonitrile | Acetone | Ethyl acetate | Dichloromethane/hexane (1 : 2,v/v) |
| Metazachlor | 68 ± 6 | 33 ± 5 | 61 ± 8 | 43 ± 6 | Tebuconazole | 74 ± 7 | 22 ± 5 | 25 ± 5 | 34 ± 8 | λ-Cyhalothrin | 60 ± 6 | 20 ± 4 | 50 ± 6 | 42 ± 6 | Chlorpyrifos | 66 ± 6 | 42 ± 3 | 8 ± 7 | 63 ± 6 | Deltamethrin | 66 ± 5 | 21 ± 3 | 39 ± 5 | 34 ± 5 | OC1 | 66.7 ± 5.0 | 27.7 ± 9.52 | 36.9 ± 20.82 | 43.5 ± 11.82 |
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1Value of the optimization criterion; 2statistically significant from the highest result.
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