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Biotechnology Techniques

, Volume 6, Issue 1, pp 5–8 | Cite as

Reliable on-line monitoring of ammonium ion in a bioreactor

  • Peter Gostomski
  • Henry Bungay
Article

Abstract

To analyze continuously a stream from a bioreactor for the concentration of ammonium ion, the broth is adjusted to high pH and conveyed to a small mixing chamber containing an ammonia electrode. The system has a delay of only 1 minute and a time constant for response of approximately 1 minute. Fouling and leaching of the electrode membrane are prevented by a small, sealed air gap between the electrode and the sample stream; membrane life is at least five days.

Keywords

Dilution Rate Sample Stream Variable Speed Drive Flow Rate Effect Ammonia Electrode 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Hill, F.F., and Thommel, J. (1982). Proc. Biochem. 17(5),16.Google Scholar
  2. Thompson, B.G., Kole, M. and Gerson, D.F. (1985). Biotech. and Bioeng. 27, 818–824.CrossRefGoogle Scholar

Copyright information

© Science & Technology Letters 1992

Authors and Affiliations

  • Peter Gostomski
    • 1
  • Henry Bungay
    • 1
  1. 1.Department of Chemical EngineeringRensselaer Polytechnic InstituteTroy

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