GC Columns
NEW VF-5ht:
FactorFour™ Columns for Extended High-Temperature Analysis
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Extended high-temperature analysis up to 400 °C |
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High molecular weight selectivity |
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Enhanced stability |
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Enhanced detector performance |
Analysis up to 400 °C
The new VF-5ht improves the analysis of high-boiling compounds by being the first high-temperature, high-performance column on the market. Based on the ultra-low bleed FactorFour technology, the VF-5ht has a maximum temperature of 400 °C, providing unmatched selectivity, sensitivity, and accuracy for the analysis of high-molecular weight compounds.
The VF-5ht is a stabilized equivalent of 5% phenyl methyl dimethylpolysiloxane, offering the same polarity as a VF-5ms. The difference is that it can be operated at 400 °C compared to 325/350 °C - yet, still offers a low bleed level (bleed spec of a 30m x 0.25mm column is <5pA at 400 °C). This enables better separation of high-boiling mixtures.
Typical components analyzed with the VF-5ht include:
High-boiling mixtures, including long-chained hydrocarbons, polymers, plastics, waxes, heavy PAH’s, tars, triglycerides, motor oils, surfactants, crown ethers, and other compounds requiring high-temperature separation. The VF-5ht is better suited to the separation of non-mid polar compounds; for highly polar compounds, the VF-5ms is recommended.
The VF-5ht comes with an EZ-GRIP™, simplifying installation, coupling, and operation of capillary columns. For guaranteed performance, the retention index, efficiency, selectivity and bleed are measured and specified on the test report supplied with each column.
Similar phases:
DB-5ht
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