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EPA and EU Phthalates on Rtx-50
| Peaks | |
|---|---|
| 1. | Dimethyl phthalate |
| 2. | Diethyl phthalate |
| 3. | Benzyl benzoate |
| 4. | Diisobutyl phthalate |
| 5. | Di-n-butyl phthalate |
| 6. | Bis(2-methoxyethyl) phthalate |
| 7. | Bis[4-methyl-2-pentyl] phthalate isomer 1 |
| 8. | Bis[4-methyl-2-pentyl] phthalate isomer 2 |
| 9. | Bis(2-ethoxyethyl) phthalate |
| 10. | Di-n-pentyl phthalate |
| Peaks | |
|---|---|
| 11. | Di-n-hexyl phthalate |
| 12. | Butyl benzyl phthalate |
| 13. | Hexyl-2-ethylhexyl phthalate |
| 14. | Bis(2-butoxyethyl) phthalate |
| 15. | Bis(2-ethylhexyl) phthalate |
| 16. | Dicyclohexyl phthalate |
| 17. | Di-n-octyl phthalate |
| 18. | Diisononyl phthalate |
| 19. | Diisodecyl phthalate |
| 20. | Dinonyl phthalate |
GC_EV1415
| Column | Rtx-50, 30 m, 0.25 mm ID, 0.25 µm (cat.# 10523) | ||||||||
| Sample | Benzyl benzoate (cat.# 31847) | ||||||||
| EPA Method 8061A phthalate esters mixture (cat.# 33227) | |||||||||
| Diluent: | Methylene chloride | ||||||||
| Conc.: | 50.0 µg/mL (80 μg/mL for internal standard benzyl benzoate) | ||||||||
| Injection | |||||||||
| Inj. Vol.: | 1 µL split (split ratio 20:1) | ||||||||
| Liner: | Premium 3.5 mm Precision liner w/wool (cat.# 23320.1) | ||||||||
| Inj. Temp.: | 280 °C | ||||||||
| Split Vent Flow Rate: | 3 mL/min | ||||||||
| Oven | |||||||||
| Oven Temp.: | 200 °C (hold 0.5 min) to 320 °C at 30 °C/min (hold 1 min) | ||||||||
| Carrier Gas | He, constant linear velocity | ||||||||
| Linear Velocity: | 66.7 cm/sec, 39.5 psi, 272.3 kPa @ 200 °C | ||||||||
| Detector | MS | ||||||||
| Mode: | Scan | ||||||||
| Scan Program: |
| ||||||||
| Transfer Line Temp.: | 300 °C | ||||||||
| Analyzer Type: | Quadrupole | ||||||||
| Source Temp.: | 280 °C | ||||||||
| Electron Energy: | 70 eV | ||||||||
| Solvent Delay Time: | 0.9 min | ||||||||
| Tune Type: | PFTBA | ||||||||
| Ionization Mode: | EI | ||||||||
| Instrument | Shimadzu 2010 GC & QP2010+ MS | ||||||||
| Notes | The flow rate of 66.7 cm/sec is equivalent to 3 mL/min @ 200 °C. The MS scan interval is 0.1 sec. | ||||||||
| Acknowledgement | The authors would like to thank Shimadzu Corporation for their consultation with the operation of the QP2010 Plus GC-MS instrument. |
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