Restek Roc LC Column Series

Restek Roc Series

Restek Roc LC Columns for Chromatography

Restek Roc LC Columns – Reliable Performance for Routine HPLC Applications

Restek Roc LC Columns are designed for laboratories that require dependable, reproducible separations in routine HPLC analyses. Built on high-purity silica and optimized bonded-phase chemistries, the Roc column family provides robust performance, excellent peak shape, and consistent results across a wide range of analytical applications.

Whether used in pharmaceutical quality control, environmental testing, food analysis, or general analytical laboratories, Roc columns deliver the reliability needed for high-throughput workflows and compendial methods. Their traditional fully porous particle design offers an excellent balance of efficiency, durability, and cost-effectiveness.

Restek Roc LC Columns Brochure

Restek Roc LC Guard Column Holder Information

Roc C18 100Å Series

Roc C8 100Å Series

Roc Phenyl Hexyl 100Å Series

Roc Cyano 100Å Series

Roc Silica 100Å Series

Key Advantages

Excellent Reproducibility

Manufactured using high-purity silica and tightly controlled bonding processes, Roc columns provide highly reproducible retention times and separation performance from column to column.

Robust Performance for Routine Analysis

The Roc series is specifically designed for routine HPLC applications, making it an ideal choice for quality control laboratories and validated methods requiring long-term consistency.

Broad Application Range

Available in multiple stationary phases, Roc columns support the analysis of acidic, neutral, and moderately basic compounds across a variety of sample matrices.

Excellent Peak Shape

The optimized surface chemistry minimizes unwanted secondary interactions, resulting in improved peak symmetry and reliable quantification for diverse analyte classes.

Selectivity Options

Roc C18 (USP L1)

A highly retentive octadecylsilane (ODS) phase offering strong hydrophobic interactions and excellent peak shape. Ideal as a general-purpose reversed-phase column for a broad range of analytes.

Best for:

Pharmaceutical compounds
Environmental contaminants
Food and beverage testing
Routine QC methods

Roc C8 (USP L7)

Provides lower hydrophobic retention than C18, enabling faster analyses and improved peak shape for certain basic compounds.

Best for:

Moderately hydrophobic compounds
Environmental contaminants
Fast method development
High-throughput analyses

Roc Phenyl-Hexyl (USP L11)

Combines hydrophobic interactions with π-π selectivity from the phenyl group, delivering enhanced separation of aromatic and structurally related compounds.

Best for:

Aromatic compounds
Isomer separations
Complex sample matrices

Roc Cyano (USP L10))

Offers alternative selectivity compared to C18 and C8 phases and can be used in reversed-phase, normal-phase, or HILIC-like applications. Particularly useful for protonated bases and confirmation analyses.

Best for:

Basic compounds
Orthogonal method development
Confirmation testing

Roc Silica (USP L3)

A base-deactivated silica phase suitable for normal-phase and HILIC separations, especially for polar compounds..

Best for:

Polar analytes
Vitamins
Organic acids
HILIC applications

Why Choose Restek Roc LC Columns?

Restek Roc LC Columns provide a trusted solution for laboratories seeking dependable chromatographic performance without unnecessary complexity. Their proven stationary-phase chemistries, broad selectivity options, and robust specifications make them an excellent choice for routine HPLC workflows, method validation, and regulated analytical environments. With Roc columns, laboratories benefit from reliable separations, consistent performance, and the confidence of Restek quality.

Restek Roc LC Columns – Reliable Performance for Routine HPLC Applications

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Key Advantages

Excellent Reproducibility

Robust Performance for Routine Analysis

Broad Application Range

Excellent Peak Shape

Selectivity Options

Roc C18 (USP L1)

Roc C8 (USP L7)

Roc Phenyl-Hexyl (USP L11)

Roc Cyano (USP L10))

Roc Silica (USP L3)

Why Choose Restek Roc LC Columns?