The field of biosensors for measuringbiochemical oxygen demand (BOD) is reviewed. Particularly, BOD sensors
constructed on the biofilm configuration are discussed regarding performance characteristics like linearity, response
time, precision, agreement between BOD values obtained from the biosensors and the conventional 5-days test, as well
as toxic resistance to various compounds and operational stability. The techniques for improvingthe agreement
between the sensor BOD and BOD5 are described. Information provided also includes BOD biosensors based on
respirometers and other measuringprinciples, the commercial BOD instruments, as well as the current limitations of
BOD biosensor development. r 2002 Elsevier Science Ltd. All rights reserved.
The field of biosensors for measuringbiochemical oxygen demand (BOD) is reviewed. Particularly, BOD sensorsconstructed on the biofilm configuration are discussed regarding performance characteristics like linearity, responsetime, precision, agreement between BOD values obtained from the biosensors and the conventional 5-days test, as wellas toxic resistance to various compounds and operational stability. The techniques for improvingthe agreementbetween the sensor BOD and BOD5 are described. Information provided also includes BOD biosensors based onrespirometers and other measuringprinciples, the commercial BOD instruments, as well as the current limitations ofBOD biosensor development. r 2002 Elsevier Science Ltd. All rights reserved.
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