CP-SimDist

CP-SimDist Column

Application-Specific GC Columns

Agilent CP-SimDist GC columns are engineered specifically for simulated distillation (SimDist) applications requiring exceptional retention index stability, robust performance, and highly reproducible boiling range determinations. Designed for use with standard and extended-range simulated distillation methodologies, CP-SimDist columns provide accurate characterization of petroleum fractions including naphtha, kerosene, diesel, gas oils, and lubricating base oils.

These columns utilize a specially optimized nonpolar dimethylpolysiloxane stationary phase that delivers the precise elution order and predictable retention necessary for ASTM D2887, ISO SimDist procedures, and other widely adopted simulated distillation methods. CP-SimDist columns are bonded and crosslinked for enhanced thermal stability and are solvent rinsable, allowing long service lifetimes even under rigorous high-throughput conditions in refinery and independent test laboratories.

The column design supports rapid conditioning, fast temperature programming, and clean baseline performance with very low bleed—critical for accurate boiling point assignment across hundreds of consecutive injections. Their manufacturing consistency ensures excellent column-to-column reproducibility, enabling seamless method implementation across multiple instruments or laboratory locations.

With a broad temperature operating range capable of handling both light and mid-range petroleum fractions, Agilent CP-SimDist GC columns offer reliable, regulatory-aligned solutions for fuel certification, refinery optimization, product blending, and compliance-based reporting. They provide stable, analyzer-grade performance essential for laboratories requiring high-precision simulated distillation data day after day.

Key Definitions ▸
Simulated Distillation (SimDist)
A gas chromatographic technique used to determine the true boiling point distribution of petroleum products. CP-SimDist columns provide the predictable retention behavior needed to correlate elution time with boiling temperature for regulatory and process applications.
ASTM D2887 / ISO SimDist Methods
Industry-standard simulated distillation methods that specify column performance for light and mid-range petroleum fractions. CP-SimDist columns are manufactured to meet the selectivity, resolution, and retention index requirements of these methods.
Retention Index Stability
A measure of how consistently a column maintains retention times over repeated injections. CP-SimDist columns excel in retention index stability, ensuring reproducible boiling range determinations across long-term routine operation.
Bonded and Crosslinked Phase
A stationary phase that is chemically bonded to the column surface and reinforced through crosslinking, providing superior thermal stability and allowing solvent rinsing — a key requirement for maintaining performance in refinery environments.
Column-to-Column Reproducibility
The degree to which columns of the same type produce identical chromatographic results. CP-SimDist columns are manufactured with extremely tight process controls to ensure consistent retention behavior across different lots, enabling seamless method transfer.
Frequently Asked Questions ▸
What applications are CP-SimDist columns designed for?
Agilent CP-SimDist columns are engineered for simulated distillation (SimDist) analysis of petroleum fractions, including naphtha, kerosene, diesel, gas oils, and other mid-range products. They support ASTM D2887, ISO SimDist, and custom refinery SimDist workflows requiring precise boiling point distribution measurements.
How does CP-SimDist differ from DB-2887 or DB-HT SimDis columns?
CP-SimDist is optimized for light and mid-distillate SimDist analysis and offers excellent retention stability and rapid conditioning. DB-2887 is tailored for ASTM D2887 mid-distillate applications, while DB-HT SimDis is designed for extended high-temperature methods such as ASTM D7169 for heavy gas oils and crude residues.
What temperature range do CP-SimDist columns support?
CP-SimDist columns support a broad temperature range suitable for rapid temperature programming used in SimDist workflows. Their bonded, crosslinked stationary phase ensures thermal stability and low bleed throughout routine operation at elevated temperatures.
Are CP-SimDist columns durable enough for high-throughput refinery use?
Yes. CP-SimDist columns are bonded, crosslinked, and solvent rinsable, providing excellent durability and long operational lifetimes even under high sample loads and frequent temperature cycling typical of refinery and certification laboratories.
How reproducible are SimDist results using CP-SimDist columns?
CP-SimDist columns are manufactured with tight retention index controls to ensure excellent column-to-column reproducibility. This results in highly consistent boiling range determinations across instruments, laboratories, and long-term operational cycles.
Why should I purchase CP-SimDist GC columns from Chrom Tech?
Chrom Tech is an authorized Agilent distributor offering competitive pricing, fast delivery, and expert technical support for simulated distillation workflows. Our team has extensive experience in petroleum, refinery, and heavy hydrocarbon applications, ensuring you receive the correct column, method guidance, and troubleshooting assistance needed for reliable ASTM-compliant results.