Richard Lab:ASE overview: Difference between revisions
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| Line 9: | Line 9: | ||
==Specifications== | ==Specifications== | ||
*Oven temperature | *Oven temperature | ||
**Ambient to | **Ambient to 200°C | ||
*Pressure | *Pressure | ||
**~1600 psi | **~1600 psi | ||
*Available sample cells | *Available sample cells | ||
**13-10mL stainless steel (~1.5g dry biomass) | **13-10mL stainless steel (~1.5g dry biomass) | ||
**6-66mL zirconium (~10g dry biomass) | **6-66mL zirconium (~10g dry biomass) | ||
**6-100mL zirconium | **6-100mL zirconium | ||
*Available extract collection vessels | *Available extract collection vessels | ||
**60mL vials | **60mL vials | ||
**250mL bottles | **250mL bottles | ||
==Sample Preparation Considerations== | ==Sample Preparation Considerations== | ||
Latest revision as of 14:31, 3 February 2010
Overview
- Automated extraction of solid samples with common solvents at elevated temperature and pressure
- Extraction steps: preheating sample cell (optional), filling cell with solvent, heating (equilibration), static extraction, rinsing, purging solvent and extractives into collection vessel, and relief
- Current applications
- Water and 95% ethanol extractions for NREL biomass compositional analysis
- Liquid hot water biomass pretreatment
Specifications
- Oven temperature
- Ambient to 200°C
- Pressure
- ~1600 psi
- Available sample cells
- 13-10mL stainless steel (~1.5g dry biomass)
- 6-66mL zirconium (~10g dry biomass)
- 6-100mL zirconium
- Available extract collection vessels
- 60mL vials
- 250mL bottles
Sample Preparation Considerations
- Grinding
- More surface area for efficient extraction
- Sample moisture
- Samples may require mixing with drying (diatomaceous earth) or dispersing (Ottawa sand) agent
- Sample pH
- Mildly acidic or basic samples can be extracted in zirconium cells
Notes
References
- Dionex info and application notes
Contact
- Who has experience with this protocol?
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