Silica Gel
Independent lab results
show DAI's silica to be the highest quality in
the industry with the
lowest amount of trace
metals. Read
More
Dynamic Adsorbents, Inc. silica gels (product
details) are carefully manufactured and quality
assured to provide the ideal laboratory and pilot
process chromatographic material. We control the
manufacturing process from raw material to finished
product. We carefully control the physical
characteristics of pore size, surface area, particle
size and surface chemistry to ensure reproducible
optimized chromatographic behavior for uniform
capacity, reproducible selectivity, improved
resolution and excellent performance.
k' - uniform capacity
- reproducible selectivity
RS- improved resolution
N - excellent performance
Reproducible performance is
delivered regardless of the technique used,
especially when transferring from one technique to
another. Silica gel is an ideal media for column
chromatography for several different reasons. Silica
gel has a very strong affinity for water, which
gives it an adsorption capacity of over 40% of its
own weight at 100% relative humidity. It is
compatible with most materials except strong alkalis
and hydrofluoric acid. Adsorbent particle size
affects how the solvent flows through the column.
Smaller particles (higher mesh values) are used for
flash chromatography, larger particles (lower mesh
values) are used for gravity chromatography.
Benefits of Silica
Many silica gel
manufacturers provide 40 micron size
silica gels. With more than 90% of silica gel
particles in the defined range (32-63 microns), the
DAI Flash grade silica provides 18-24%
more consistency than any competitive vendor. It is
manufactured to satisfy the rigorous specifications
of our demanding customers, separation
scientists.
Separation chemists need to remember that
not all 40-63 micron silica gels are the same. Try
using this DAI superior
high purity, clean particle size product for
your separations. The rewarding results will
demonstrate the
benefits, reproducible lot to lot consistency
in product yield.
-
High sample loading
-
Fewer unwanted reactions during separation
-
Wide range of chromatographic forms of silica –
wide range of surface areas and average pore
diameters
-
The hydroxyl group in silica is attached to
silicon – hydroxyl groups are either free or
hydrogen bonded
-
The silica gels used are amorphous
For What Applications Can Silica Be Used?
-
“Flash” Chromatography
-
Column Chromatography
-
DCC - Dry Column Chromatography
-
Large Column Chromatography
-
TLC, HPTLC, HPLC Prep LC.
-
Pilot - Prep - Process
-
Analytical QC Methods Development
Advantages of DAI Silica Over
Competitors
-
Highest Quality in the
Industry: An independent lab analysis of
silica from all major vendors reveals that the
level of unwanted iron, lead and copper
contaminants is much less than that of our
competitors – in some cases strikingly so! There
is no finer brand of silica gel commercially
available.
-
Greater
Consistency: Many silica gel manufacturers
provide 40 micron size silica gels. With more than
90% of silica gel particles in the defined range
(32-63 microns), the DAI Flash grade silica
provides 18-24% more consistency than any
competitive vendor.
-
Particle distribution is
kept extremely tight for reproducible results.
-
Carefully manufactured and
quality assured to provide the ideal laboratory
and pilot process chromatographic material
-
Careful control of the
physical characteristics of pore size, surface
area, particle size and surface chemistry
ensuring reproducible optimized chromatographic
behavior for uniform capacity, reproducible
selectivity, improved resolution and excellent
performance.
-
Full control of the
manufacturing process from raw material to
finished product.
-
All silicas can come with MSDS sheets, as well as
Certificates of Analysis
if requested.
Independent lab results
show DAI's silica to be the highest quality in
the industry with the
lowest amount of trace
metals. Read
More
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