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  Cogent Type-C Silica
Click here to visit Cogent TYPE-C™ HPLC Columns Home Page


View Hydrophobicity & Silanophilic Tests

View Batch Reproducibility

View NMR Data to Confirm C18 Structure
Specifications: Type C Silica Products for HPLC

Specifications - 4µm Silica

Silica: Spherical Shaped, Thermally Treated Type C Silica™; washed with Acid for low metals content,
< 10ppm.

ADVANTAGES:
Better Lot to Lot Consistency, More uniform bonding with Silicon-Carbon bonds, isocratic mobile phases more effective, less need for mobile phase additives. Highly stable in pH extremes, high temperature resistant and extremely low silanol activity. Maximum pressure for the columns should not exceed 4,500 psi during the run. Never remove any HPLC instrument while it is under any pressure to avoid damage to it.

Cogent Type-C Silica™ HPLC Phases:

 
 
Bonded Phase Pore Size Surface Area Pore Volume Particle Size End-Capping Carbon Load pH Range Max Temp
Cogent UDC Cholesterol™ 100Å 350m2/gm 0.92ml/gm 4µm N/A 12% 2.0–8.0 80°C
Cogent Bidentate C18™ 100Å 350m2/gm 0.92ml/gm 4µm N/A 16.5% 2.0–10.1 80°C
Cogent Bidentate C8™ 100Å 350m2/gm 0.92ml/gm 4µm N/A 7.0% 2.0–8.0 80°C
Cogent Silica-C™ 100Å 350m2/gm 0.92ml/gm 4µm N/A 0% 2.0–7.0 60°C
Cogent Diamond Hydride™ 100Å 350m2/gm 0.92ml/gm 4µm N/A >0.5% 2.5–7.5 60°C
Cogent Bidentate C8 300™ 300Å 150m2/gm 1.50ml/gm 5µm N/A 5% 2–7.5 80°C
Cogent Phenyl Hydride™ 100Å 350m2/gm 0.92ml/gm 4µm N/A 10.8% 1–8 80°C

 

 

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