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This Size Exclusion
Chromatography is equipped with an autosampler for multiple
sample analysis. We use 4 different molecular weight range columns (oligomers
to 3.10^6 g/mole). THF is the preferred solvent and is degassed online.
The temperature of the columns is automatically regulated. Two detectors
are used (RI and multiwave length UV) for maximal performance
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Agilent HPLC
This High Pressure Liquid Chromatography is used
for small molecule analysis.
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This Microtrac light scattering instrument is used to measure the size
of particles in powder or liquid form from 30nm to 3mm
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The
Capillary Hydrodynamic Fractionator is a
device used to measure particle sizes below 1 micron in diameter.
It works by separating different sized particles
via the velocity profile of a capillary tube.
Larger particles travel through faster since
they are more exposed to the higher velocity than the smaller particles
which align closer to the walls of capillary (and thus are less exposed
to the higher velocity fluid passing through).
Samples tested in the CHDF should be diluted
properly so as to not clog the capillary tubing of the machine
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This high resolution optical microscope is equipped with a video camera
and can record images on a VCR or on a floppy disc. It is used to
analyze dispersed system of size greater than a few microns
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DMA Q 800 studies and characterizes materials. It is most
useful for observing the viscoelastic nature of polymer. |
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The Differential Scanning Calorimeter (DSC) is a
thermal analysis tool which can identify various properties of different
materials including melting/crystallization points and glass transition
temperature regions. The
machine brings a sample through operator specified heat transitions and
records the corresponding energy.
This energy can be translated into certain parameters including
heat flow and heat capacity.
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Advanced rheometer 2000 is a kind of viscometer that measures visco-elastic
properties of materials beyond just viscosity |
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Tensor 27 is used to investigate the
molecular composition of the substance. It is also able to investigate
the protein adsorption. |
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Centrifuge 5810R is used to separate molecules. |
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