Phenomenex Rezex ROA-Organic Acid H+ (8%) IEX HPLC Columns

Key Features of the Rezex ROA-Organic Acid H+ (8%) Ion Exclusion HPLC Column:

• 8% cross-linked hydrogen
• For use with organic acids in combination with carbohydrates, alcohols, fatty acids, neutral compounds; amino sugars
• Uniquely suited to monitor starches, sugars, organic acids, and ethanol in one run for bioethanol fermentation analysis
• Applications
  • Organic acids in combination with carbohydrates, alcohols, fatty acids, or neutral compounds
  • Ethanol, acetic acid, glycerol, and standard alcohol mixtures
  • Amino sugars
• Achieve excellent base line separation between Dp3 and Dp4+

Specifications and Operating Recommendations

• Part No.: 00H-0138-K0
• Ionic Form: Hydrogen
• Standard Dimensions: 300 x 7.8 mm
• Matrix: Sulfonated Styrene Divinyl Benzene
• Cross Linking: 8 %
• Particle Size (μm): 8
• Min. Efficiency (p/m) based on last peak: 50,000
• Typical Pressure (psi @ Testing Flow Rate): 580
• Max. Pressure (psi @ Max Flow Rate): 1,000
• Max. Flow Rate (mL/min): 1.0
• Max. Temperature (°C): 85
• Typical Mobile Phase: 0.005 N H2SO4
• pH Range: 1-8
• Guard Column Part: 03B-0138-K0

Cleaning, Regeneration and Storage     

• Organic Modifiers (Max): 5 % Methanol, IPA, EtOH
• Inorganic Modifiers: 5 % HNO₃, H₃PO₄
• Avoid: Acids, Bases, Salts or Metal Ions, pH > 3, > 30 % Acetonitrile
• Cleaning Solvent: 100 % Water
• Flow Rate(mL/min): 0.4
• Temperature (°C): 85
• Duration (hrs): 12
• Regeneration Solvent: 0.025 M H₂SO₄
• Flow Rate (mL/min): 0.2
• Duration (hrs): 4-16
• Ship/Storage Solvent: 0.005 M H₂SO₄

Cross Reference Guide

• Bio-Rad® Aminex®: HPX-87H (125-0140)
• Supelco® Supelcogel™: Supelcogel (C-610H & H)   
• Waters® SugarPak™: N/A
• Transgenomic® CARBOSep™: N/A
• Sepax® Carbomi®: N/A