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- W2069156941 abstract "Complex mixtures of dicarboxylic acids are separated by anion-exchange chromatography in sodium phosphate and determined automatically by chromic acid oxidation with silver sulphate as catalyst. The influence of column loading, temperature and eluent composition is described. The size of the anions, the acid strength of the parent acid and non-polar contributions have important effects on the retention volume. Une méthode d'analyse est proposée pour des mélanges complexes d'acides dicarboxyliques. On procéde à une séparation par Chromatographie avec échangeur anions en milieu phosphate de sodium. Le dosage se fait ensuite automatiquement par oxydation à l'acide chromique, avec sulfate d'argent comme catalyseur. Divers paramétres ont été examinés. Komplexe Gemische von Dicarbonsäuren werden durch Anionenaustausch-Chromatographie an Natriumphosphat getrennt und automatisch durch Chromsäure-Oxidation mit Silbersulfat als Katalysator bestimmt. Der Einfluss von Säulenbeladung Temperatur und Elutionsmittelzusammensetzung wird beschrieben. Die Grösse der Anionen, die Säurestärke der zugehörigen Säure und nichtpolare Beiträge haben einen erheblichen Einfluss auf das Retentionsvolumen." @default.
- W2069156941 created "2016-06-24" @default.
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- W2069156941 date "1971-11-01" @default.
- W2069156941 modified "2023-09-23" @default.
- W2069156941 title "Separation of microgram quantities of dicarboxylic acids by anion-exchange chromatography" @default.
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- W2069156941 doi "https://doi.org/10.1016/s0003-2670(01)80133-1" @default.
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