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Questo cromatogramma potrebbe contenere analiti che sono sinonimi dei vostri parametri di ricerca.
Residual Solvents in Cannabis Concentrates on Rxi-624Sil MS by Headspace–Full Evaporation Technique (HS-FET)
| Peaks | tR (min) | |
|---|---|---|
| 1. | Isobutane | 0.910 |
| 2. | Butane | 0.996 |
| 3. | Methanol | 1.112 |
| 4. | Pentane | 1.508 |
| 5. | Ethanol | 1.545 |
| 6. | Acetone | 1.795 |
| 7. | Isopropanol | 1.891 |
| 8. | n-Hexane | 2.412 |
| 9. | Chloroform | 2.962 |
| 10. | Benzene | 3.213 |
| 11. | Heptane | 3.363 |
| 12. | Toluene | 4.135 |
GC_FS0517
| Column | Rxi-624Sil MS, 30 m, 0.25 mm ID, 1.40 µm (cat.# 13868) |
| Sample | Residual solvent mix |
| Diluent: | Dimethyl sulfoxide (DMSO) |
| Conc.: | 500 ppm (For the HS-FET technique, 10 µL of a 1,000 µg/mL standard was placed into a 20 mL headspace vial to represent a 500 ppm sample concentration, assuming a 20 mg sample.) |
| Injection | headspace-loop split (split ratio 10:1) |
| Liner: | Premium 1.0 mm ID straight inlet liner (cat.# 23333.1) |
| Headspace-Loop | |
| Inj. Port Temp.: | 250 °C |
| Instrument: | Tekmar HT3 |
| Inj. Time: | 1.0 min |
| Transfer Line Temp.: | 160 °C |
| Valve Oven Temp.: | 160 °C |
| Needle Temp.: | 140 °C |
| Sample Temp.: | 140 °C |
| Platen temp equil. time: | 1.0 min |
| Sample Equil. Time: | 30.0 min |
| Vial Pressure: | 20 psi |
| Pressurize Time: | 5.0 min |
| Loop Pressure: | 15 psi |
| Loop Fill Time: | 2.0 min |
| Oven | |
| Oven Temp.: | 35 °C (hold 1.5 min) to 300 °C at 30 °C/min (hold 2.0 min) |
| Carrier Gas | He, constant flow |
| Linear Velocity: | 80 cm/sec |
| Detector | FID @ 250 °C |
| Make-up Gas Flow Rate: | 45 mL/min |
| Make-up Gas Type: | N2 |
| Hydrogen flow: | 40 mL/min |
| Air flow: | 450 mL/min |
| Data Rate: | 20 Hz |
| Instrument | Agilent/HP6890 GC |
| Notes | The FID temperature in this chromatogram was set too low in error. FID temperature should be set to 320°C for residual solvent analysis. This will not affect peak shape or elution profile, but will ensure terpenes do not condense on FID jet. The butane used for standard preparation was a mixture of butane and isobutane in an unknown ratio. The concentrations of butane and isobutane should be considered approximate, but do not exceed 500 ppm for either component. |
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