CP-SIL 5 CB UltiMetal

CP-SIL 5 CB UltiMetal Column

Agilent CP-Sil 5 CB UltiMetal GC Columns

Agilent CP-Sil 5 CB UltiMetal columns combine the proven performance of the CP-Sil 5 CB nonpolar 100% dimethylpolysiloxane phase with the rugged durability of Agilent’s UltiMetal deactivated stainless-steel tubing. This enhanced design provides exceptional thermal stability, extended lifetime, and increased mechanical strength—making these columns an ideal solution for high-temperature or harsh-environment GC workflows where fused silica may not be suitable.

Built on a fully nonpolar PDMS phase, CP-Sil 5 CB UltiMetal delivers predictable boiling point–driven separations, excellent inertness, and low bleed performance suitable for environmental volatiles, petrochemical fractions, industrial chemicals, flavor and fragrance compounds, and general-purpose GC and GC/MS applications. The column’s optimized deactivation ensures sharp peak shapes for both volatile and reactive analytes, maintaining strong reproducibility across long analytical sequences.

The UltiMetal stainless-steel platform provides superior resistance to oxygen exposure, improved robustness under rapid heating ramps, and compatibility with demanding injection techniques, including large-volume injections. These benefits make CP-Sil 5 CB UltiMetal a preferred choice for laboratories requiring extended column longevity, the highest-temperature capabilities, and maximum operational stability in challenging GC environments.

Key Definitions â–¸
UltiMetal Deactivated Stainless Steel
A proprietary Agilent deactivation process applied to stainless-steel tubing to create an inert, corrosion-resistant, and thermally stable GC column platform. UltiMetal columns tolerate higher temperatures and harsher operating conditions than fused silica alternatives.
100% Dimethylpolysiloxane (PDMS) Phase
A fully nonpolar stationary phase used for boiling point–driven separations. This chemistry provides consistent retention patterns and broad applicability for hydrocarbons, solvents, petrochemicals, and environmental volatiles.
High-Temperature Compatibility
The ability of the column to operate at elevated maximum oven temperatures. UltiMetal construction supports higher temperature limits than standard fused silica, extending column lifetime and enabling more aggressive thermal programs.
Large-Volume Injection (LVI)
A technique in which significantly larger sample volumes are introduced to improve detection limits. UltiMetal columns tolerate LVI better due to superior mechanical strength and resistance to solvent-induced stress.
Inert Surface Deactivation
A specialized treatment that minimizes active sites on the column’s internal surface. This improves peak shapes and reduces adsorption of polar, acidic, basic, and thermally sensitive analytes—critical for reproducible VOC and semi-volatile analyses.
Frequently Asked Questions â–¸
What applications are best suited for CP-Sil 5 CB UltiMetal columns?
CP-Sil 5 CB UltiMetal columns are ideal for high-temperature GC applications, rugged industrial environments, and workflows requiring maximum mechanical durability. They are widely used for petrochemicals, environmental volatiles, industrial solvents, flavor and fragrance compounds, and general-purpose hydrocarbon analysis.
How does UltiMetal tubing differ from standard fused silica?
UltiMetal tubing is made from deactivated stainless steel, offering superior mechanical strength, enhanced thermal stability, and greater resistance to oxygen and moisture. This construction extends column lifetime and prevents breakage common with fused silica in demanding GC conditions.
Is CP-Sil 5 CB UltiMetal compatible with GC/MS systems?
Yes. The low bleed characteristics and inert surface of CP-Sil 5 CB UltiMetal produce clean mass spectra and stable baselines, making it fully compatible with GC/MS analysis. Its high temperature tolerance also supports robust MS detector performance during long sequences.
Can UltiMetal columns handle large-volume injections (LVI)?
Yes. UltiMetal’s mechanically strong stainless-steel platform withstands large-volume injections without phase damage or performance drift. This durability makes it suitable for high-loading methods and samples with heavy solvent concentrations.
What advantages does CP-Sil 5 CB UltiMetal offer in long, high-temperature sequences?
UltiMetal construction supports higher maximum oven temperatures, greater resistance to oxidation, and improved mechanical stability under repeated heating cycles. This ensures extended column lifetime, less drift, and highly reproducible results in long analytical sequences or aggressive thermal programs.