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Columns and cartridges for gas, ion, HPLC, low-pressure LC, and flash chromatography; includes pre-packed and open columns, packing, guard columns and accessories, and other supplies for flash chromatography.
Molecular sieves are synthetically produced zeolites (naturally occurring aluminosilicate minerals), and are characterized by pores and internal cavities of extremely uniform dimensions.
Spherical (better packed bed performance than granular particles). Hard and non-friable (pack well, will not break). Highly porous (high surface areas). Used for molecules with an analyte size relative to C2-C5 n-alkanes. Hydrophobic (can be used in high humidity environments)
Strongly acidic cation exchange resin suitable for a wide variety of chemical process applications, removal of amino acids at low pH, USP potassium methods, etc.