供应Whatman Cellulose DE-52 纤维素DE-52价格

M23 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
formFunctional
groupNormal
pH rangeSmall ion
capacity
（meq/dg*）Protein
capacity
（mg/dg*）Packing density
mg/mlg†/ml
Dry Fibrous    
CM23                 Carboxymethyl3 to 100.6 to 0.767585§0.15
Dry Microgranular    
CM32Carboxymethyl3 to 102.1 to 2.81180‡2000.24
Preswollen Microgranular    
CM52Carboxymethyl3 to 100.90 to 1.151180§2101.1
Dry Fibrous    
P11Orthophosphate 2 to 103.2 to 5.3400 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

Ordering Information - Cation Exchange Celluloses
Catalog NumberDescription
Dry Fibrous Carboxymethyl Cellulose

4033-025CM23, 250 g
Dry Microgranular Carboxymethyl Cellulose

4035-010CM32, 100 g
4035-050CM32, 500 g
Preswollen Microgranular Carboxymethyl Cellulose

4037-050CM52, 500 g
4037-200CM52, 2 kg
Dry Fibrous Cellulose Phosphate

4071-010P11, 100 g
4071-050P11, 500 g
4071-200P11, 2 kg

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