Make your selection from below:
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Packing Material Differences Silica-based packing materials that belong to the same category (i.e.C18/USP L1) do not necessarily provide equal chromatography when made by different manufacturers. For instance, two different 5m C18 150x4.6mmID columns used for the same method may provide quite different results in terms of resolution, selectivity, efficiency, and peak shape due to the following material differences:
Minor differences between packing materials can create major differences in chromatography, but the following relationships generally apply for reversed phase chromatography:
Packing Material Selection If a specific material is specified for your method, choose it from your preferred supplier. Otherwise, start out with a column from a suggested category (C8, C18, etc.) in a standard size such as a 150 x 4.6mm. Once you have optimized your method for this first column, you can determine what parameters or conditions you may be able to change to improve your chromatography. For general changes in column selection, refer to the next section, Column Selection Criteria. If your selection requires knowledge of specific differences between packings, call us for technical assistance. Step1: Select Column Criteria
Step2: Select Column Source
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