CP-Sil PONA CB

CP-Sil PONA CB Column

Agilent CP-Sil PONA CB GC Columns

Agilent CP-Sil PONA CB GC columns are engineered specifically for high-resolution Paraffins–Olefins–Naphthenes–Aromatics (PONA) analysis, providing the selectivity and stability required for detailed hydrocarbon characterization in refinery and petrochemical laboratories. These nonpolar columns feature an exceptionally inert, highly reproducible stationary phase that delivers sharp, well-resolved peaks across the complex gasoline range.

Designed for ASTM-compliant detailed hydrocarbon analysis, CP-Sil PONA CB columns offer excellent discrimination between closely related isomers, enabling accurate quantitation and reliable component profiling. Their advanced bonded and crosslinked chemistry provides outstanding thermal stability, minimal bleed, and enhanced retention time repeatability—essential for long-term method consistency in high-throughput QC environments.

With proven column-to-column reproducibility, CP-Sil PONA CB is widely used for gasoline blending optimization, reformate characterization, feedstock purity evaluation, and regulatory conformance testing. These columns are also ideal for DHA systems requiring precise separation of C5–C12 hydrocarbons and detailed interpretation of complex chromatographic fingerprints.

Whether used as a standalone column or integrated into dedicated PONA/DHA analyzer systems, Agilent CP-Sil PONA CB delivers the accuracy, robustness, and selectivity needed for critical petroleum product evaluation and certification workflows.

Key Definitions â–¸
PONA (Paraffins, Olefins, Naphthenes, Aromatics)
A detailed hydrocarbon analysis technique that separates gasoline-range components into key hydrocarbon classes. PONA analysis is used extensively for blending optimization, refinery certification, and petroleum product quality control.
Detailed Hydrocarbon Analysis (DHA)
A high-resolution GC technique used to identify and quantify hundreds of individual hydrocarbons in gasoline and related samples. PONA-compatible columns such as CP-Sil PONA CB provide the selectivity and efficiency required for ASTM-compliant DHA workflows.
Isomer Resolution
The ability to resolve structural isomers—such as branched paraffins, substituted aromatics, or closely related olefins—which is essential in gasoline characterization and DHA reporting. CP-Sil PONA CB phases are specifically optimized for high isomeric separation power.
Retention Time Reproducibility
A measure of stability critical for multi-component petroleum analyses. CP-Sil PONA CB columns are engineered for consistent retention indices and reproducible peak positions across long-term, high-throughput operation.
Gasoline Blending Optimization
Refinery workflows that adjust gasoline component ratios to meet regulatory and commercial performance targets. DHA/PONA data generated on CP-Sil PONA CB columns supports precise decision-making by providing accurate component-level hydrocarbon profiles.
Frequently Asked Questions â–¸
What types of applications are CP-Sil PONA CB columns designed for?
CP-Sil PONA CB columns are designed for high-resolution detailed hydrocarbon analysis (DHA), including full PONA characterization of gasoline-range hydrocarbons. They are used extensively in refinery certification, fuel blending optimization, reformate evaluation, and petrochemical feedstock analysis.
How does PONA analysis relate to detailed hydrocarbon analysis (DHA)?
DHA is a broader methodology that identifies and quantifies hundreds of individual hydrocarbons in gasoline. PONA is a key output of DHA, grouping components into paraffins, olefins, naphthenes, and aromatics. CP-Sil PONA CB columns provide the selectivity needed to achieve accurate, ASTM-compliant DHA results.
Why is isomer resolution important in PONA analysis?
Gasoline contains many structural isomers that have different combustion properties and regulatory impacts. CP-Sil PONA CB columns are engineered to separate branched and linear paraffins, olefin isomers, and substituted aromatics, ensuring accurate compositional profiling and regulatory compliance.
Are CP-Sil PONA CB columns compatible with ASTM DHA methods?
Yes. CP-Sil PONA CB columns meet the stringent resolution, selectivity, and retention index requirements of ASTM DHA standards. Their excellent reproducibility supports consistent, long-term compliance in refinery and contract lab environments.
How durable are CP-Sil PONA CB columns for routine, high-throughput refinery testing?
CP-Sil PONA CB columns are bonded, crosslinked, and engineered for exceptional retention time stability and low bleed. Their rugged construction supports long column lifetimes, even in continuous DHA workflows involving heavy sample matrices and high cycle counts.