CM23 dry fibrous carboxymethyl cellulose
Uniformly substituted fibrous media allowing very fast flow rates, especially after fines removal; exhibits high binding for proteins and biopolymers bearing positive charges.
CM32 dry microgranular carboxymethyl cellulose
High-capacity medium for proteins, hormones, polypeptides, and other biopolymers bearing low to high positive charges; excellent resolution with good column flow rates. Requires precycling to restore swelling. Equivalent after swelling to CM52.
CM52 preswollen microgranular carboxymethyl cellulose
High-capacity medium for proteins, hormones, polypeptides, and other biopolymers bearing low to high positive charges; excellent resolution with good column flow rates.
P11 dry fibrous cellulose phosphate
Dry fiber. Recommended for column separations.
EXPRESS-ION High Flow Rate Ion Exchange Media are described separately.
Ion Exchange Celluloses are also available in paper format.
| Typical Data - Cation Exchange Media |
Physical
form |
Functional
group |
Normal
pH range |
Small ion
capacity
(meq/dg*) |
Protein
capacity
(mg/dg*) |
Packing density |
| mg/ml |
g†/ml |
| Dry Fibrous |
|
|
|
|
|
| CM23 Carboxymethyl |
3 to 10 |
0.6 to 0.7 |
675 |
85§ |
0.15 |
| Dry Microgranular |
|
|
|
|
|
| CM32 |
Carboxymethyl |
3 to 10 |
2.1 to 2.8 |
1180‡ |
200 |
0.24 |
| Preswollen Microgranular |
|
|
|
|
|
| CM52 |
Carboxymethyl |
3 to 10 |
0.90 to 1.15 |
1180§ |
210 |
1.1 |
| Dry Fibrous |
|
|
|
|
|
| P11 |
Orthophosphate |
2 to 10 |
3.2 to 5.3 |
400 to 500 |
- |
0.22 |
* dg = dry gram
† g = gram as supplied (dry or preswollen)
‡ Lysozyme in 10 mM acetate buffer pH 4.4
§ Lysozyme in 10 mM acetate buffer pH 5.0 |