volume 47, issue 2, P109-116 2007
DOI: 10.1002/jctb.280470204
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Abstract: Abstract A sensor for NH+4 ions has been developed, which consists of immobilized micro‐organisms (Bacillus subtilis, Pseudomonas aeruginosa, Trichosporon cutaneum) in combination with an electrochemical transducer. This sensor is based on the measurement of acceleration of respiration after addition of NH+4 in the presence of glucose. The physiological background of this signal and its connection with NH+4 ion uptake and/or metabolism is discussed. The response time of the sensor is about 5.10 s for NH+4 ion…

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