Porosimeter
Brand/Model:
Quantachrome Autosorb -1 MP (2010)
Description/use: Nitrogen and argon adsorption characterization of porous materials with micropore and krypton.
Technical specifications:
(blew specific surface) option, equipped with cryostat (LN2 temperature up to 200 K).
Pycnometer
Brand/Model:
Micromeretics Accupic 1330 helium pycnometer
Description/use:
Measures the true density (not the bulk density) of a porous material (activated carbon, mesoporous silica, zeolite) by applying pressure changes of helium.
Technical specifications:
Stable measurement between 15 °C and 35°C, 1.35 barg, accuracy within 0.03% of reading, reproducibility within 0.02% of the nominal full scale, 0.5-100 cm³ sample volume.
GC-MS
Brand/Model:
Agilent® 6890N Gas Chromatograph (GC) and a LECO® Pegasus III Mass Spectrometer (MS-TOF)
Description/use:
The GC-MS setup compromises 3 main components. An Agilent® 6890N Gas Chromatograph (GC) combined with LECO® Pegasus III Mass Spectrometer detector operating on Time-Of-Flight (MSTOF) principle and PAL® autosampler injection system. The set up can be used for qualitative and quantitative analysis of components up to trace amounts. Quantitative information is obtained from standard chromatography theory, while the MS allows identifying the different components by their unique mass-spectra. The operating principle is as follows: The injected components are separated into different peaks by gas chromatography. The resulting components (peaks) are subsequently bombarded by electrons and form a unique set of ions, which are then accelerated onto a detector. The acceleration, and thus flight time, is dependent on the m/z ratio of the ion. Technical specifications: The MS operates at a vacuum pressure of 2.10-7 Pa and has a mass range of 5 to 1000 u, unit mass resolution and spectral generation rate of 1 to 5 00 spectra per second. The detection limit is up to 2 pg. The device utilizes the CHROMATOFTM analysis software which allows comparing of spectra versus NIST® mass spectral database.
Experiment examples:
Typical experiments involve the identification of reaction products or impurities.
