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Peaks | tR (min) | Conc. | |
---|---|---|---|
1. | Ethanol | 7.21 | <10% |
2. | Benzene | 8.40 | <5% |
3. | 2-Butanol (IS) | 9.57 | 4% |
4. | Toluene | 12.22 | <20% |
Column | D3606 application column (2 column set). Column 1: Sulfinert tubing, 6 ft (1.8 m), 2.00 mm ID, 0.125 in OD; Rt-D3606-1 proprietary packing material. Column 2: Sulfinert tubing, 15.5 ft (4.7 m), 2.00 mm ID, 0.125 in OD; Rt-D3606-2 proprietary packing material (cat.# 83606A-800) |
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Standard/Sample | Gasoline (87 octane with ethanol) spiked with internal standard (IS) |
Conc.: | Neat |
Injection | |
Inj. Vol.: | 1.5 µL packed not on-column |
Liner: | Topaz 2.0 mm ID straight inlet liner (cat.# 23313) |
Inj. Temp.: | 200 °C |
Oven | |
Oven Temp.: | 135 °C (hold 15 min) |
Carrier Gas | He, constant flow |
Flow Rate: | 25 mL/min @ 135 °C |
Detector | TCD @ 200 °C |
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Instrument | Agilent/HP6890 GC |
Notes | Valve box temperature: 150 °C Backflush (valve) times for this column set are: • Valve on at ~4.3.0 minutes • Valve off at 12.0 minutes Note that backflush times must be determined for each GC system. To determine the backflush time, analyze ASTM backflush standard (cat. # 30671) following the procedure described in the instruction sheet for the D3606 column set. Then, multiply the result by the algorithm 2.33. |
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