COSMOSIL
5C18-PAQ
The
COSMOSIL 5C18-PAQ is the new member of our C18 column family already including the monomeric type MS-II,
the polymeric type AR-II. This new column maintains stable
retention time even in 100% aqueous mobile phases because
the silica is only partially coated with C18 chains.
The new polymeric linking style gives a strong acidic resistance
to this column.
- Stable
retention time in 100% aqueous mobile phase
- Good
separation of hydrophilic compounds
- Resistance
for acidic mobil phase
- Low
carbon content controlled packing material
- Polymeric
type linked C18
|
| The
figure shows the change of retention time for Thymine
with 100% aqueous mobile phase (20mmol/l phosphate buffer
pH7). After analyzed 4 times (1 hour), flow of mobile
phase were stopped for 1 hour, and then similarly analyzed
again. The conventional C18 showed change of
retention time, but COSMOSIL 5C18-PAQ mantained
stable retention time. |
MATERIAL
CHARACTERISTICS |
- |
COSMOSIL
5C18-PAQ |
Silicagel |
high
purity porous spherical silica |
Average
particle size |
5µm |
Average
pore size |
approx.
120Å |
Specific
surface area |
approx.
300m2/g |
Stationary
phase |
polymeric
octadecyl group |
End
capping treatment |
near-perfect
treatment |
Carbon
content |
approx.
11% |
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to Top
| Catalog
# |
Cosmosil 5C18-PAQ Column |
Price ($U.S.) |
- |
| 02486-71 |
5C18-PAQ - Analytical Column, 4.6 x 150mm |
$350.00 |
 |
| 02485-81 |
5C18-PAQ - Analytical Column, 4.6 x 250 mm |
$390.00 |
|
| 02484-91 |
5C18-PAQ - Analytical Guard Column, 4.6 x 10.0 mm |
$190.00 |
|
|
