Agilent Bio IEX

Agilent Bio IEX HPLC Columns

Agilent Bio Ion-Exchange HPLC columns are packed with polymeric, nonporous, ion-exchange particles. Bio Ion-Exchange Columns are designed for high resolution, high recovery and highly efficient separations of peptides, oligonucleotides and proteins. The Bio IEX family offers strong cation-exchange (SCX), weak cation-exchange (WCX), strong anion-exchange (SAX) and weak anion-exchange (WAX) phases. All Bio Ion-Exchange phases are available in 1.7, 3, 5 and 10 µm non-porous particles sizes.

Agilent Bio IEX

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Features
  • Highly crosslinked and rigid nonporous poly(styrene divinylbenzene) (PS/DVB) particles are grafted with a hydrophilic, polymeric layer, eliminating nonspecific binding
  • Uniform, densely packed ion-exchange functional groups are chemically bonded to the hydrophilic layer (multiple ion-exchange groups per anchoring) to increase column capacity
  • Particles, coating and bonding are resistant to high pressures, promoting higher resolution and faster separations
  • Multiple ion-exchange groups are captured on one anchoring to increase capacity
Specifications
Column phase SCX (Strong cation-exchange) – SO3H
WCX (Weak cation-exchange) – COOH
SAX (Strong anion-exchange) – N(CH3)3
WAX (Weak anion-exchange) – N(C2H5)2
Packing Non-porous, poly(styrene divinylbenzene) (PS/DVB), grafted hydrophilic coating and bonded with a uniform, ion-exchange layer
Particle size 1.7, 3, 5 and 10 µm
Pore structure Non-porous
pH stability 2 - 12
Operating temperature limit 80 ºC
   
Column hardware operating pressure limit 600 bar (8,700 psi) for stainless steel column hardware
400 bar (5,800 psi) for PEEK column hardware
   
Particle operating pressure limit 275 bar (4,000 psi) for 10 µm particles
413 bar (6,000 psi) for 5 µm particles
551 bar (8,000 psi) for 3 µm particles
689 bar (10,000 psi) for 1.7 µm particles
Mobile phase compatibility Compatible with aqueous solution buffers, acetonitrile/acetone/methanol and water mixtures. Commonly used buffers: phosphate, tris, MES and acetate
Working flow rate Typical 0.1 - 1 mL/min for a 4.6 mm id column or 2.1 mm id column; always start a low flow rate and set default to the maximum hardware and/or particle pressure, whichever is lower.
Dynamic binding capacity   NP3 NP5 NP10
SCX 53 mg/mL 38 mg/mL 20 mg/mL
WCX 19 mg/mL 15 mg/mL 10 mg/mL
SAX 35 mg/mL 28 mg/mL 17 mg/mL
WAX 26 mg/mL 18 mg/mL 12 mg/mL



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