The VF-5ht UltiMetal™ is the latest addition to the Varian FactorFour™ Lowbleed GC column series. It offers excellent signal-to-noise ratio for trace analysis. The column is highly stable, even at high temperatures, reducing the need for replacement and maintenance. It provides improved peak shape and allows for injection of larger sample volumes.
This document introduces the Varian VF-5ht UltiMetal, described as the latest low bleed GC column from the FactorFour series. It features a patented stabilization technology applied to an outer stainless steel coating, which provides exceptional stability at high temperatures and reduces maintenance requirements for gas chromatography instruments.
The leaflet details the advantages of this construction over traditional fused silica columns, noting that the UltiMetal coating prevents breakage and offers chemical inertness. It includes technical specifications for various column dimensions (inner diameters of 0.25 mm and 0.32 mm) and presents data comparing stabilization times and chromatographic performance against other commercially available high-temperature columns. This manual is written in German.
| Column Dimensions (Example) | 30 m x 0.25 mm x 0.10 mm |
|---|---|
| Column Dimensions (Example) | 30 m x 0.32 mm x 0.10 mm |
| Stationary Phase Type | 5 % Phenyl, 95 % Polydimethylsiloxanphase |
| Operating Temperature Range | Up to 400 °C |
It offers exceptional stability at higher temperatures and reduces maintenance effort because the detector gets less dirty.
The stabilized liquid phase coating results in lower column bleed and a constant low baseline, enabling excellent trace analysis.