Single-Ended HPLC Technology

Single-Ended Column Design

Traditional HPLC columns often present technical hurdles, including clogging, leakage, and complex installation processes. These issues lead to inefficient workflows and potential sample loss, underscoring the need for innovation in column design.

Clogging at the tube–column junction

Sorting through many available high-pressure fittings

Selecting the proper tube length and ID

Leakage around the high-pressure solvent connections

Installation problems with tubing to achieve minimum dead volume

Not enough space on a short column for a full-size label

Introducing the format

Introducing the SIELC Single-Ended HPLC Column

The design completely eliminates the need for external fittings and tubing while minimizing dead volume. Even if a leak occurs, the mobile phase remains contained within the system, preventing external leakage.

These columns are used in the Cromite™ analyzer and are compatible with standard HPLC systems.

All SIELC and traditional phases are available in the new format:

Reverse and Normal Phases, Ion Exchange, HILIC, Chiral, Ion Exclusion, and Size Exclusion.

SIELC Single-Ended HPLC Column

Technology principle

How It Works

At the core of the SIELC Single-Ended HPLC Column lies a proprietary patented coaxial design, engineered for superior performance and reliability.

This unique architecture ensures near-zero dead volume and precise flow alignment, maintaining stable mobile phase movement across all flow rates and pressures.

Near-Zero Dead Volume

Ensures optimal chromatographic separation efficiency.

Precise Flow Alignment

Guarantees stable mobile phase movement, even at high pressures.

Simplified Installation

Reduces connection errors and streamlines setup processes.

Seamless Operation: Install Once, Forget About Fittings

As the mobile phase enters through the MP inlet, it flows through an internal axial capillary aligned with the column, passes through the packing bed, and exits through a bypass channel connected to the outlet. This design eliminates dead volume and prevents external leakage.

Single-Ended HPLC Column flow diagram