Agilent has been awarded a US patent for the process used to apply the superficially porous shell to particles in Agilent Poroshell 120 high-performance liquid chromatography (HPLC) columns.
The patent was issued for the coacervation process used to manufacture the Poroshell 120 silica.
The process applies the superficially porous shell to the particles in a single step, replacing a multi-layering procedure.
This reduces variation between columns for more reproducible results.
Poroshell 120 columns make the high speed and high resolution of sub-two-micron separations available to users of any mainstream LC instrument, including conventional HPLC.
The columns also enhance the performance of UHPLC systems up to 600 bar, enabling chromatographers to optimise the performance of Agilent's new 1200 Infinity Series, which offers 600-bar capabilities as a standard feature.
