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normal-phase chromatography

chemistry

Quick Summary

Normal-phase chromatography is a type of liquid chromatography that uses a polar stationary phase and a less polar mobile phase. This method separates compounds based on their differing affinities for these two phases. Polar compounds are retained more strongly by the polar stationary phase, while less polar compounds are carried along more quickly by the mobile phase. Common stationary phases include silica and alumina, and nonpolar solvents are typically used as the mobile phase to effectively sweep solutes from the column. This technique is valuable for separating a wide range of substances in fields like chemistry and biology.1234

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