Analytical Guard Column, PRP-X200

Hamilton PRP-X200 cation exchange HPLC columns are designed for rapid, high resolution separation of alkali and alkaline earth metals. The alkali metals and ammonium are completely resolved in less than five minutes, and the alkaline earth cations separate in under four minutes. Since the mobile phase conditions are different and unique for each of the groups of cations, interferences between these groups are eliminated.  The resolution between any two ions in the alkali metal series can be increased or decreased by changing the concentration of methanol in the mobile phase. This unique feature of the PRP-X200 mobile phase/stationary phase interaction allows the chromatographer to focus on the particular ion of interest and reduce possible interference from other ions in the sample. The stationary phase is a sulfonated poly (styrene-divinylbenzene), so it is stable to all concentrations of organic modifiers as well as strong acids and bases. The rigid spherical polymer phase allows operation up to 5,000 psi. The PRP-X200 columns are designed for use in all of today’s ion chromatographic equipment. Since exchange capacity is low, background signal is low. This allows low detection limits at the highest conductivity detector settings. Pack Your Own Columns - Hamilton offers a range of bulk polymer resins for customers who prefer to pack their own column hardware. Chromatographic capacity and efficiency tests are conducted on both bulk and packed column resins to ensure product integrity. Samples from different lots can be purchased for method and process validation. Protect Your Investment - Hamilton guard columns protect analytical, semi-prep and preparative HPLC columns. They also remove particulate contaminants and highly adsorptive compounds from samples, prolonging column life. The designs are modular and cartridge replacement is easy and tool-free.  Cartridge holders for analytical columns are available in stainless steel and PEEK materials. Semi-prep/preparative holders are available only in stainless steel. The design of the cartridge holders is optimized to reduce dead volume and prevent extra column band broadening. Cartridge holders are reusable indefinitely.