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STYROS™ CM (Carboxymethyl)
Low Capacity Weak
Cation Exchanger
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STYROS™
CM/XP
4.6 x 100 mm column.
Standard separation of 4 proteins at 1,800 cm/hr
(5 ml/min). |
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Same column at 360 cm/hr (1 ml/min) |

Contents:
- Product Summary
- Key Features
- Specifications

STYROS™ CM is a Weak Cation Exchanger
with low protein capacity.
The base matrix that is fully pervious is made of highly crosslinked
poly(styrene-divinylbenzene).
Our proprietary polymerization technique ensures that the beads are not brittle
and as a result, free of leachables.
The unique macroporous structure takes full advantage of the inner bead's
surface area making it possible to run high speed, high resolution separation
without any mass transfer restrictions.
STYROS™ CM provides low
static and dynamic capacity to enable high resolutions during analytical
separations.
It has an extremely high pressure tolerance, and can be used up to 5,000 psi.
High resolution separations can be achieved at high, as well as low flow rates.
The goal has been to provide seamless series of stationary phases that could
facilitate the transition from analytical to semi preparative applications, all
within the same products.
Our proprietary column packing are geared towards providing high batch to batch
reproducibility.
Feature 1:
Optimum protein capacity (measured with Lysozyme)
10 mg/ml
Feature 2:
Although we have used pressures of up to 10,000 psi
without irreversibly altering the structure of the beads, we recommend the
following pressure limits:
4,000 psi for the XH series,
3,000 psi for the XP and XM series.
4,000 psi for the NB series
4,000 psi for the MB series
Feature 3:
No measurable shrinking and/or swelling due to highly
crosslinked nature of the beads.
| Support Matrix |
Crosslinked
Poly(styrene-divinylbenzene) |
Surface Functionalities
STYROS™ CM |
Carboxymethyl |
| Shipping Solvent |
30 % MeOH in DI Water |
| Packing Density |
0.4 g/ml |
| Shrinkage/Swelling |
< 0.5 % under different salt or solvent concentrations |
| Maximum Pressure Tolerance |
270 bar (4,000 psi, 27 MPa) |

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