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Questo cromatogramma potrebbe contenere analiti che sono sinonimi dei vostri parametri di ricerca.
Chlorinated Pesticide Residues in Olive Oil Rtx-CLPesticides2
| Peaks | Quant. ion | Qual. ion 1 | Qual. ion 2 | |
|---|---|---|---|---|
| 1. | α-BHC* | 219 | 181 | 109 |
| 2. | γ-BHC | 219 | 181 | 109 |
| 3. | β-BHC | 219 | 181 | 109 |
| 4. | δ-BHC | 219 | 181 | 109 |
| 5. | Heptachlor | 272 | 237 | 100 |
| 6. | Aldrin | 263 | 293 | 220 |
| 7. | Heptachlor epoxide | 263 | 237 | 81 |
| 8. | δ-Chlordane | 272 | 237 | 65 |
| 9. | α-Chlordane | 272 | 237 | 65 |
| 10. | Endosulfan I | 195 | 207 | 241 |
| 11. | 4,4'-DDE | 246 | 318 | 176 |
| 12. | Dieldrin | 79 | 263 | 277 |
| 13. | Endrin | 263 | 281 | 81 |
| 14. | 4,4'-DDD | 235 | 165 | 199 |
| 15. | Endosulfan II | 195 | 207 | - |
| 16. | 4,4'-DDT | 235 | 165 | 199 |
| 17. | Endrin aldehyde | 67 | 250 | 345 |
| 18. | Endosulfan sulfate | 272 | 229 | 239 |
| 19. | Methoxychlor | 227 | 274 | - |
| 20. | Endrin ketone | 67 | 317 | 281 |
* α-BHC not detected due to low recovery during sample preparation.
GC_FF01043
| Column | Rtx-CLPesticides2, 30 m, 0.25 mm ID, 0.20 µm (cat.# 11323) |
| Sample | Olive oil spiked with Organochlorine Pesticide Mix AB # 3 (cat.# 32415) |
| Conc.: | 10 µg/mL |
| Injection | |
| Inj. Vol.: | 1 µL splitless (hold 0.5 min) |
| Liner: | Single Taper w/Wool (cat.# 22286-200.1) |
| Inj. Temp.: | 225 °C |
| Oven | |
| Oven Temp.: | 140 °C (hold 0.5 min) to 268 °C at 20 °C/min to 290 °C at 3 °C/min to 330 °C at 20 °C/min (hold 5 min) |
| Carrier Gas | He, constant flow |
| Flow Rate: | 1 mL/min |
| Detector | MS |
| Mode: | SIM |
| Transfer Line Temp.: | 320 °C |
| Ionization Mode: | EI |
| Notes | Extraction and dSPE Cleanup for Pesticide Residues in Olive Oil Test sample: A 1.5 mL sample of commercially obtained virgin olive oil was spiked with a standard organochlorine pesticide mix. The spiked sample was processed as follows: 1. Dilute with 1.5 mL hexane. 2. Add 6 mL of acetonitrile (ACN). 3. Mix for 30 minutes on a shaker. 4. Allow layers to separate (approximately 20 minutes), then collect the top (ACN) layer. 5. Repeat the liquid-liquid extraction (steps 2–4) and combine both ACN extract layers. 6. Place 1 mL of the combined ACN extract in a 1.5 mL tube containing 150 mg magnesium sulfate and 50 mg PSA. 7. Shake the tube for 2 minutes. 8. Centrifuge at 3,000 U/min for approximately 5 minutes. 9. Remove the top layer and inject directly into the gas chromatograph system. |
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