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Investigations concerning the system peak in ion-chromatography using indirect photometric detection

Untersuchungen zum Systempeak in der Ionen-Chromatographie mit indirekter UV-Detektion

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Zusammenfassung

Bei der Ionen-Chromatographie ohne Suppressortechnik tritt häufig ein Systempeak im Chromatogramm auf, der in Veröffentlichungen teilweise auch als Hydrogencarbonat-Peak ausgewiesen wird. Die Größe und Richtung des Systempeaks hängen vom pH-Wert der Probe und des Laufmittels ab. Zusätzlich tritt eine Korrelation mit dem Carbonatgehalt der Probe auf, deren Ursache wir untersucht haben.

Summary

In single-column ion chromatography frequently a „system peak” is observed, which is marked as hydrogencarbonate peak in a great number of publications. The area and direction of the system peak depends on the pH-value of the sample as well as on the eluent. In addition a correlation between the hydrogencarbonate concentration and system peak has been proved. The correlation HCO −3 system peak is studied and the results are described in this paper.

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Authors and Affiliations

  1. Fachbereich Chemie und Chemietechnik, Angewandte Chemie, Universität-GH Paderborn, Warburger Straße 100, D-4790, Paderborn, Federal Republic of Germany

    G. Brandt, P. Vögler & A. Kettrup

Authors
  1. G. Brandt
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  2. P. Vögler
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  3. A. Kettrup
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Brandt, G., Vögler, P. & Kettrup, A. Investigations concerning the system peak in ion-chromatography using indirect photometric detection. Z. Anal. Chem. 325, 252–254 (1986). https://doi.org/10.1007/BF00498167

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  • DOI: https://doi.org/10.1007/BF00498167

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