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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.

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 7.5% 2.0–8.0 100°C
Cogent Bidentate C18™ 100Å 350m2/gm 0.92ml/gm 4µm N/A 16.5% 2.0–10.1 100°C
Cogent Bidentate C8™ 100Å 350m2/gm 0.92ml/gm 4µm N/A 7.0% 2.0–8.0 100°C
Cogent Silica-C™ 100Å 350m2/gm 0.92ml/gm 4µm N/A 0% 2.0–7.0 100°C
Cogent Diamond Hydride™ 100Å 350m2/gm 0.92ml/gm 4µm N/A >0.5% 2.5–7.5 100°C

 

  

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