Merck KGaA, Darmstadt, Germany

- HPLC columns

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Purospher® HPLC columns are based on high purity, metal-free silica for outstanding separations with excellent peak symmetry. Therefore Purospher® columns provide tailing-free separations of acidic, basic, and chelating compounds. - Excellent peak symmetry - Batch-to-batch reproducibility for reliable analysis - Balanced chromatographic properties (Tanaka Hexagon) - Excellent separation efficiency - Extended column lifetime

Purospher® RP-18: strong basic or chelating compounds (no acidic compounds), hydrophilic compounds with a high percentage of water in the mobile phase


Purospher® RP-18 endcapped: complex samples with simple eluents


Purospher RP-18 HC: polar, non-basic compounds e.g. explosives


Purospher® STAR RP-18 endcapped: neutral, acidic, basic or chelating compounds, excellent stability up to pH 10.5


Purospher® STAR RP-8 endcapped: less hydrophobic compounds or of position isomeric compounds


Purospher® STAR Phenyl: aromatic compoundscompounds containing aromatic groups


Purospher® STAR NH2 and Si:  normal phase chromatography (Si) and separation of carbohydrates (NH2)

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