The Alpha Series

The ALPHA Series represents a high-performance C18, C8, CN, Amino, SCX, and Phenyl phase based on a new type of silica gel developed to show better retention, greater selectivity and high loadability, caused by its exceptionally high surface area.
The bonding density is chosen with respect to optimal selectivity for both hydrophilic and hydrophobic compounds, enabling even the use of 100% aqueous eluents.
The end capping technology minimizes residual silanol group to an amount which is below the detectable level.
Silanol group have negative effects on peak symmetry, particularly in case of basic compounds, and on chemical phase robustness.
Every Alpha column is tested for efficiency and passed only if it shows more than 80,000 plates per meter for toluene.
Alpha Analytical and Preparative columns are available in all standard and specialized dimensions.

Excellent Mechanical Strength

Our Columns are made of ultra-pure silica with completely spherical & porous particle.

Outstanding Chemical Stability

Our cutting-edge technology ensures high bonding density with minimal silanol activity.

Greater Surface Area

Our product is optimized for particle size, surface area, pore volume and pore diameter for better surface morphology.

Excellent Homogeneity and

Our quality is carefully monitored and very tightly controlled at each step of the manufacturing process.

Finest Resolution

Our product provides better resolution with higher peak efficiencies due to optimal particle size distribution. Accomplish higher performance with enhanced selectivity, retention capacity and efficiency.

Technical Specification

Bonding Phase C18 C8 CN Phenyl Amino
Average Particle Size (μm) 5 & 3 μm 5 μm 5 μm 5 μm 5 μm
Average Pore Size (Å) 100 120 120 120 120
Specific Surface Area (m.sq/g) 450 300 287 340 300
Average Pore Volume (ml/g) 1.1 1.0 1.06 1.07 1.0
Carbon Load (%) 17 10 7.1 8.3 4
pH Range 1.5-10.5 2-8 2-8 2-8 2-8
USP Listing L1 L7 L10 L11 L18