STYROS™ CM  (Carboxymethyl)
Weak Cation Exchanger.

Contents:

• Product Summary 
• Key Features
• Specifications
• STYROS™ CM Price List

• Product summary: 

STYROS™ CM is a Simulated Monolith fully uniform polymer based packing for cation exchange chromatography of biomolecules such as proteins and peptides, intended for use in high speed, high resolution applications.
The base matrix that is fully pervious is made of highly crosslinked poly(styrene-divinylbenzene).
Our proprietary polymerization technique ensures that the packing is not brittle and as a result, free of any leachables. 
The unique macroporous structure takes full advantage of the inner surface area making it possible to run high speed, high resolution separation without any mass transfer restrictions.
STYROS™ CM provides high static and dynamic capacities to enable high throughput separations during analytical and preparative runs.
It has an very high pressure tolerance, and can be used up to 3,000 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 and preparative applications, all within the same products.
Our proprietary manufactured columns are geared towards providing high reproducibility. 

• Key Features:

Feature 1:

Optimum protein capacity (measured with RNase)

55 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 

Feature 3:

No measurable shrinking and/or swelling due to highly crosslinked nature of the beads.

• Specifications:

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)

STYROS™ CM/XH 4.6 x 100 mm Column. Standard separation of 4 proteins at 1,800 cm/hr (5 ml/min)

Same column at 360 cm/hr (1 ml/min)