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Stir Bar Sorptive Extraction Cleaned Up Sample - QuEChERS Extract of NIST SRM Mussel (Rxi-17Sil MS and Rxi-1ms, m/z 178)
| Peaks | RT 1 (sec.) | RT 2 (sec.) | |
|---|---|---|---|
| 1. | Phenanthrene | 1677 | 0.75 |
| 2. | Anthracene | 1689 | 0.75 |
GC_EV1232
| Column | Rxi-17Sil MS 15 m, 0.25 mm ID, 0.25 µm (cat.# 14120) |
| Rxi-1ms 0.7 m, 0.15 mm ID, 0.15 µm (cat.# 43800) | |
| Sample | |
| Diluent: | Methylene chloride |
| Injection | |
| Inj. Vol.: | 1 µL splitless (hold 1 min) |
| Liner: | Premium 4mm Single Taper w/Wool (cat.# 23303.1) |
| Inj. Temp.: | 250 °C |
| Purge Flow: | 40 mL/min |
| Oven | |
| Oven Temp.: | Rxi-17Sil MS: 40 °C (hold 1 min) to 320 °C at 5 °C/min (hold 3 min) Rxi-1ms: 45 °C (hold 1 min) to 325 °C at 5 °C/min (hold 3 min) |
| Carrier Gas | He, corrected constant flow (2.2 mL/min) |
| Modulation | |
| Modulator Temp. Offset: | 20 °C |
| Second Dimension Separation Time: | 3 sec |
| Hot Pulse Time: | 0.9 sec |
| Cool Time between Stages: | 0.6 sec |
| Detector | TOFMS |
| Transfer Line Temp.: | 290 °C |
| Analyzer Type: | TOF |
| Source Temp.: | 225 °C |
| Electron Energy: | 70 eV |
| Mass Defect: | 0 mu/100 u |
| Solvent Delay Time: | 4 min |
| Tune Type: | PFTBA |
| Ionization Mode: | EI |
| Acquisition Range: | 45-550 amu |
| Spectral Acquisition Rate: | 200 spectra/sec |
| Instrument | LECO Pegasus 4D GCxGC-TOFMS |
| Notes | Rxi-1ms (cat.# 43800) is a 10 m column. A 0.7 m section was used here as a second dimension column. |
| Acknowledgement | Ed Pfannkoch and Jackie Whitecavage of Gerstel Inc. USA for providing the mussel extract for GCxGC analysis. |
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