Dr. Maisch Exsil 100 Diol Analytical HPLC Column, 5 µm, 100 Å, 4 x 250 mm, 1/Pk - 5136534.s2504

ExSil® 100

Dr. Maisch Exsil 100 Diol Analytical HPLC Column, 5µm, 100Å, 4mm I.D. x 250mm Length, 1/Pk

Product Number: 5136534.s2504

• 100 Å
• 0.52 cc/g
• 208 m2/g
• Type A Silica and Bonded Phases
• Alternative to Spherisorb
• Available in 1.5, 3, 5 and 10 μm particle sizes
• Widest range of bonded phases

The original Exsil 100 range was developed to provide an alternative to Spherisorb type products. The extensive range of bonded phases includes novel phases such as the ODS-B and Octyl-B which are so deactivated that they can chromatograph strong bases in buffer free eluents. The range of phases continues to provide a comprehensive selection for all standard applications.

• Selectivity: The diol phase provides a unique selectivity due to the hydrogen bonding interactions between the diol groups and the polar compounds.
• Diol: The "Diol" indicates that the silica surface is modified with dihydroxypropyl groups. These groups provide a polar, hydrophilic surface that can interact with polar analytes through hydrogen bonding.
• Applications: Diol columns like Exsil 100 Diol are typically used in normal-phase chromatography, where the mobile phase is less polar than the stationary phase. This mode of chromatography is particularly useful for separating compounds with different polarities and functional groups, such as sugars, alcohols, and other polar molecules.
• Normal Phase: In normal-phase chromatography, the stationary phase (in this case, the diol-modified silica) is polar, and the mobile phase is less polar. Analytes that are more polar will be retained longer than less polar analytes.
• Exsil 100: Columns with a pore size of 100 Å Angstroms (10 nm)

Specifications: