Lab Equipment > Analytical Instruments > Chromatograph-HPLC > HPLC Columns > New Analyses at Extreme pH Conditions!
New Product: New Analyses at Extreme pH Conditions!
Posted: Saturday, June 2, 2012 Location: Pennsylvania, USA
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In business since 1985.
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pHidelity™ C18 3µm Columns
We are pleased to introduce pHidelity pH-stable HPLC columns, designed for analyses that require, or benefit from, extreme pH conditions. pHidelity™ columns incorporate a proprietary barrier layer that protects the base silica particle, and a secondary layer that provides the functional stationary phase ligand. pHidelity™ columns can be used routinely up to pH 12 - a significant improvement over the typical pH 2.5 to 7.5 range for silica-based materials. pHidelity™ columns give you more control over analyte retention and resolution; mobile phase pH can be increased to enhance retention of basic analytes - without sacrificing column lifetime.
Practically, the useable pH range for conventional silica-based HPLC columns is pH 2.5 to 7.5. Columns are used outside of this range only when there is an extreme need for a separation, and the inevitable price - a very short column lifetime - must be accepted. pHidelity™ pH-stable HPLC columns can be used far above the typical pH range for silica-based stationary phases, with mobile phases up to pH 12, giving more control over analyte retention and resolution.
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