ProtumLink™
Core Benefit: Rapid profiling for high-throughput and screening-driven workflows
The ProtumLink 5 cm emitter-integrated column is designed for laboratories prioritizing high sampling throughput while maintaining the sensitivity needed for limited-input material. It is a reliable choice for rapid discovery and scouting experiments.

Even under accelerated conditions, the 5 cm format maintains sharp and stable peak profiles. At 1 µL/min, FWHM values remain consistently in the 3.1–4.1 s range across 5–15 min gradients, supporting confident peptide quantification and robust detection in high-volume workflows and QC environments.
With a usable flow range from 100 nL/min (nanoflow) up to 2000 nL/min (capillary flow), the column adapts well to different analytical needs. Its low backpressure enables operation at up to 1 µL/min even on pressure-limited systems, making it easy to transition between rapid screens, QC checks, and sensitive low-input analyses without changing hardware.

Connect columns feature a pre-installed CaptiveSpray Inlet (CSI) adapter at the emitter end, enabling direct use on Bruker CaptiveSpray and CaptiveSpray Ultra ion sources without additional emitter hardware. At the inlet side, an integrated liquid junction allows straightforward connection to nano-LC systems using standard 10-32 threaded female fittings, enabling fast column exchange and preserving zero-dead-volume performance.
In Bruker configurations, grounding is applied through the liquid junction, ensuring proper electrical contact and stable electrospray operation.
This configuration provides a robust nanospray interface with minimal post-column dispersion, stable spray performance, and seamless integration with Bruker timsTOF platforms.
• Thermo Scientific nanoViper Fingertight Fittings • IDEX Health & Science MarvelXACT UHPLC Connection Systems • Waters ZenFit Connection Technology (compatibility pending verification)
| Property | Specification |
|---|---|
| Silica Brand | ReproSil-Pur 120 C18-AQ (Dr. Maisch GmbH) |
| Chromatographic Mode | Reversed-phase |
| Particle Size | 1.9 µm |
| Pore Size | 120 Å |
| Surface Area | 300 m²/g |
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Packages
Column ID (Diameter)
All prices are quoted net and are exclusive of tax and shipping fees.
| Bonding / Phase |
| C18 (ODS), fully end-capped, aqueous-compatible |
| Carbon Load | 15% |
| pH Stability Range | 2 – 8 |
| Max Operating Pressure | ≤ 1200 bar |
| Max Operating Temperature | 60 °C* |
*Ultra-fast gradients may be operated up to 70 °C.
We rely on a well-established C18 material from Dr. Maisch because it has been widely used in LC–MS–based proteomics for nearly two decades and is known for its stable bonding chemistry, consistent material quality, and reproducible performance. This makes it a dependable foundation for achieving high-quality peptide separations across diverse workflows.
The 1.9 µm C18 particles provide a balanced combination of peak capacity, mechanical robustness, and retention stability, supporting sharp and predictable peak shapes under the aqueous mobile-phase conditions typical for proteomics.