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The analytical laboratory as an integral part of a process control circuit—A model on laboratory scale

Das analytische Labor als integrierter Bestandteil in der Prozeß-Regelung. Ein Modell im Laboratoriumsmaßstab

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Zusammenfassung

Der Einfluß der Art der analytischen Methode auf die Regelbarkeit eines Prozesses wird anhand eines Modellprozesses im Laboratoriumsmaßstab demonstriert. Die Auswirkung der Analysengenauigkeit, der Dauer der Analyse sowie der Zeit zwischen zwei Probenahmen wird untersucht. Da das Modell den Jahresverlauf eines Prozesses in wenigen Tagen simulieren kann, ist es auch für Unterrichtszwecke geeignet. Außerdem bietet es dem Analytiker die Möglichkeit, die optimalen Analysenparameter auch dann zu bestimmen, wenn die theoretische Grundlage fehlt.

Summary

A model process on laboratory scale is presented for the demonstration of the influence of the properties of an analytical method on the controllability of a process. Investigated are the influence of the analysis accuracy, the analysis time and the time between two sampling actions. As the model simulates a years operation of a real process in a few days, it can be used for educational training. Moreover, it enables the analyst to deduce the optimal analytical parameters in those cases also for which theoretical relations are missing.

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References

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Authors and Affiliations

  1. Department of Analytical Chemistry, Faculty of Sciences, Catholic University, Toernooiveld, Nijmegen, The Netherlands

    Bernard G. M. Vandeginste & Theo A. H. M. Janse

Authors
  1. Bernard G. M. Vandeginste
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  2. Theo A. H. M. Janse
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Additional information

A detailed diagram of the process hardware and a complete diagram of the electronics of the procedure model, together with the supporting calculator (HP-9820) program is available on request from the authors.

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Vandeginste, B.G.M., Janse, T.A.H.M. The analytical laboratory as an integral part of a process control circuit—A model on laboratory scale. Z. Anal. Chem. 286, 321–328 (1977). https://doi.org/10.1007/BF00431191

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  • DOI: https://doi.org/10.1007/BF00431191

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