USP Allowable Adjustments Guide
Quickly view allowable adjustments outlined by the United States Pharmacopeia (USP) and select the proper Phenomenex column for your monograph using this simple guide.
High pH and Temperature with HALO® ELEVATE C18, 1.5 mm ID Column
December 11th 2024Over the course of 5000 injections, the HALO®Elevate C18 1.5 mm ID column demonstrates stability and robustness in the stationary phase and the column hardware, with no significant changes to the retention time, peak shape, and back pressure.
Separation of Antidepressants Using HALO 90 Å PCS C18 Compared to C18
December 11th 2024A mix of four antidepressants is separated using the HALO®PCS (positive charged surface) C18 column demonstating the improved tailing factor and efficiency when compared to a traditional (uncharged) C18 stationary phase.
