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Analysis of pyrimidine derivatives by capillary electrophoresis

Analyse von Pyrimidinderivaten mitteles Kapillarelektrophorese

  • Anorganische Und Physikalische Chemie
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Summary

A capillary electrophoretic method has been developed for the determination of the main product as well as of by-products in technical samples of substituted pyrimidines. Both zone electrophoresis and micellar electrokinetic chromatography have been used for the separation employing electrolytes consisting of borate buffers (pH 9 to 9.4) with or without sodium dodecylsulfate. Optimization of separation selectivity could be achieved by addition of up to 20% 2-propanol or methanol to the carrier electrolyte. Quantification by internal standards resulted in relative standard deviations between 0.2 and 0.8%. By-products could be analyzed down to levels of 0.1% in technical samples.

Zusammenfassung

Für die Bestimmung von Haupt- und Nebensubstanzen in technischen Proben von substituierten Pyrimidinen wurde ein kapillarelektrophoretisches Analysenverfahren entwickelt. Sowohl Zonenelektrophorese als auch mizellare elektrokinetische Chromatographie mit Trägerelektrolyten bestehend aus Boratpuffern (pH 9 bis 9.4) mit oder ohne Natriumdodecylsulfat wurden für die Trennung eingesetzt. Eine Optimierung der Trennselektivität war durch die Zugabe von bis zu 20% 2-Propanol oder Methanol zum Trägerelektrolyten möglich. Quantifizierung mittels interner Standards ergab relative Standardabweichungen zwischen 0.2 und 0.8%. Nebenprodukte konnten in technischen Proben bis zu Gehalten von 0.1% analysiert werden.

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Buchberger, W., Ahrer, W. & Stitz, A. Analysis of pyrimidine derivatives by capillary electrophoresis. Monatsh Chem 128, 795–804 (1997). https://doi.org/10.1007/BF00807090

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  • DOI: https://doi.org/10.1007/BF00807090

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