that of a glucose standard. This system can be constructed
rapidly, and it is inexpensive. The amplifier that reads out the
current from the working electrode costs less than $30 for off-
the-shelf components. In combination with a data-logging
system, we visualized the dynamic signals on a computer
monitor. Data logging can also be accomplished with a low-cost
hand-held multimeter. We believe that, in addition to being
appropriate for use in the clinical laboratory, the system has
characteristics (simplicity; ruggedness; low cost; adaptability for
battery operation, if required) needed for certain diagnostic
applications in developing countries; for home healthcare
settings; and for applications in, for example, water and food
quality, veterinary medicine, and environmental monitoring.
This system has the potential to be less expensive in repetitive
analyses than many other currently used systems because the
electrode surface is cleaned after each use by the continuous
flow of buffer. Disposable components are therefore not
necessary. The ease of construction and low cost also make the
system attractive for use in education and training in analytical
chemistry
that of a glucose standard. This system can be constructedrapidly, and it is inexpensive. The amplifier that reads out thecurrent from the working electrode costs less than $30 for off-the-shelf components. In combination with a data-loggingsystem, we visualized the dynamic signals on a computermonitor. Data logging can also be accomplished with a low-costhand-held multimeter. We believe that, in addition to beingappropriate for use in the clinical laboratory, the system hascharacteristics (simplicity; ruggedness; low cost; adaptability forbattery operation, if required) needed for certain diagnosticapplications in developing countries; for home healthcaresettings; and for applications in, for example, water and foodquality, veterinary medicine, and environmental monitoring.This system has the potential to be less expensive in repetitiveanalyses than many other currently used systems because theelectrode surface is cleaned after each use by the continuousflow of buffer. Disposable components are therefore notnecessary. The ease of construction and low cost also make thesystem attractive for use in education and training in analyticalchemistry
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