LABORATORY: CNR ISPC – Stone LAB
NAME OF THE INSTRUMENT
High Resolution-Accurate Mass GC-MS and Pyrolysis/ High Resolution-Accurate Mass GC-MS
GENERAL DESCRIPTION
Gas chromatograph coupled to a High Resolution-Accurate Mass mass spectrometer (GC-HRA-MS) with Orbitrap technology useful for the analysis of organic materials (e.g. glycerolipids, natural waxes, protein, resinous and polysaccharide material). The combination of the pyrolyzer with GC-MS allows characterizing macromolecules (e.g. natural and synthetic resins) through the recognition of the products obtained from pyrolysis.
The GC-MS analysis involves a different sample preparation (~ 0.1 mg) depending on the materials you want to characterize (lipids, proteins, polysaccharides), which is introduced via an autosampler. Py-GC-MS analysis allows you to analyze the sample as it is or after a derivatization reaction which is introduced via an autosampler into the GC.
GC-HRAMS TECHNICAL DETAILS:
- Mass range: 30 to 3000 m/z
- Resolution: 100000 at m/z =272
- Mass accuracy: internal < 1ppm RMS; external <3 ppm RMS
- Electron ionization (EI) source
- Chemical ionization (CI) source
- Scan speed: up to 18 Hz at a resolution setting of 12,500 at m/z 272
- Sensitivity: ppt
PYROLYZER TECHNICAL DETAILS:
- Four analytical techniques available:
- Evolved Gas Analysis (EGA-MS)
- Single-shot analysis
- Double-shot analysis
- Heart-cut EGA-GC/MS (HC/EGA-GC/MS)
- Oven temperature control range/temperature stability: ambient temperature +10 to 1050 ºC (1 ºC increments) / within ± 0.1 ºC
- Heating oven heating rate: maximum 600 ºC/min (every 1 ºC/min)
Referent:
Giulia Germinario giulia.germinario@cnr.it