Catalog Number - 69020-SP250

Maximum‑Resolution Semi‑Preparative HILIC Purification with Aromatic Selectivity Using Phenyl Hydride™

The 69020‑SP250 Phenyl Hydride™ Semi‑Preparative HPLC Column is designed for laboratories requiring the highest resolving power for semi‑preparative purification of aromatic and polar compounds that are difficult to retain or separate using conventional reversed‑phase chromatography. Manufactured using Cogent TYPE‑C™ silica hydride technology, this stationary phase delivers exceptional aromatic selectivity, stable retention, and robust column lifetime across extended semi‑preparative runs.

This column format is selected when maximum peak spacing, improved compound discrimination, or enhanced purification confidence is required at the semi‑prep scale.

Why Choose Phenyl Hydride™ for High‑Resolution Semi‑Preparative Separations

Phenyl Hydride™ stationary phases combine HILIC‑type retention with interaction mechanisms that strongly favor aromatic compounds, making them particularly effective for demanding semi‑preparative separations:

• Strong retention of highly polar and moderately polar analytes under high‑organic mobile‑phase conditions

• π–π and hydrophobic interactions that enhance aromatic selectivity

• Superior separation of structurally similar or closely eluting compounds

• Highly reproducible retention behavior across repeated injections

These characteristics make Phenyl Hydride™ well suited for semi‑preparative workflows where resolution is the primary objective.

Cogent TYPE‑C™ Silica Hydride Advantage

Phenyl Hydride™ columns are based on silica hydride surfaces rather than traditional silanol‑rich bonded silica, providing important performance advantages for longer semi‑preparative formats:

• Faster equilibration compared to conventional bonded‑silica HILIC phases

• Stable retention at high organic solvent composition

• Reduced risk of phase collapse or dewetting

• Extended column lifetime under repetitive semi‑preparative use

These features support consistent, predictable performance during challenging separations and method scale‑up.

Ideal Applications

The 69020‑SP250 Phenyl Hydride™ semi‑preparative column is routinely used for purification of:

• Aromatic amines

• Small peptides containing aromatic residues

• Azides and heteroaromatic compounds

• Polar analytes requiring extended retention and maximum resolution

It is especially valuable when shorter semi‑prep columns do not provide sufficient resolving power.

10 mm ID × 250 mm Length for Maximum Semi‑Preparative Resolution

The 10 mm internal diameter × 250 mm length configuration provides:

• Maximum plate count for semi‑preparative separation of closely related compounds

• Increased retention for difficult‑to‑separate polar analytes

• Improved peak spacing and separation confidence

This format is commonly selected when the highest achievable separation efficiency is required before transitioning to preparative‑scale columns.

System Compatibility and Operating Requirements

Due to its diameter and operating demands, this column requires a specialized HPLC system capable of semi‑preparative operation, including:

• Stable delivery of elevated flow rates

• Appropriate injector capacity and detector flow cells

• Operation within suitable pressure and solvent limits

Typical flow‑rate range: Method‑dependent and governed by system capability System compatibility: Semi‑preparative or preparative‑capable HPLC systems Special requirements: Standard analytical‑only HPLC systems may not be suitable

Custom Order Manufacturing Notice

The 69020‑SP250 Phenyl Hydride™ Semi‑Preparative Column:

• Can be manufactured to order

• Is supplied according to Custom Order specifications

• Is intended for users who have verified system compatibility and application requirements

Customers are encouraged to review Custom Order information prior to purchase.

• Read our Custom Order Policy.