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Separation of Naphthoic Acid Separation of Diacid Hydrophobic and Ion Exchange Modes  Primesep B combines a hydrophobic, reversed-phase mechanism with ion exchange to separate the diacids, fumaric, benzoic, phthalic, naphthoic, and maleic acids. Changing the acetonitrile content of the mobile phase reverses the peak order for naphthoic and maleic acids. Primesep B combines reversed-phase and anion-exchange mechanism with a mobile phase of water, acetonitrile (MeCN, ACN) and trifluoracetic acid (TFA) and UV detection at 250 nm. Application Analytes: Benzoic Acid Dicarboxylic Acids Fumaric Acid Maleic Acid Naphthoic Acid Phthalic Acid Application Detection: UV Detection HPLC Separation of Organics Acids  Primesep D separates organic acids such as fumaric, benzoic, phthalic, naphthoic, and maleic acids by a mixture of anion exchange and reversed phase. Retention times and elution order can be changed by adjusting the percentage of acetonitrile in the mobile. This can not be done by traditional ion-exchange and ion-exclusion chromatography. The HPLC separation uses a mobile phase of water, acetonitrile (MeCN, ACN) and trifluoroacetic acid (TFA) and UV detection at 250 nm. Application Analytes: Benzoic Acid Fumaric Acid Maleic Acid Naphthoic Acid Phthalic Acid Application Detection: UV Detection |
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