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HPLC Application of Mixed-Mode Separation of Dihydroxybenzoic Acids  Primesep B offers better selectivity over traditional, reversed-phase C18 columns for separating regioisomers of aromatic dihydroxybenzoic acids (2,3-dihydroxybenzoic, 2,4-dihydroxybenzoic, 2,5-dihydroxybenzoic 3,4-dihydroxybenzoic, 3,5-dihydroxybenzoic acids) Primesep B combines reversed-phase and anion-exchange mechanism with a mass spec compatible mobile phase of water, acetonitrile (MeCN, ACN) and trifluoracetic acid (TFA). Application Analytes: Carboxylic Acids 2,3-Dihydroxybenzoic Acid 2,4-Dihydroxybenzoic Acid 2,5-Dihydroxybenzoic Acid 3,4-Dihydroxybenzoic Acid 3,5-Dihydroxybenzoic Acid Application Detection: UV Detection |
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