Figure 6.13
(a) Apparatus for stripping analysis.
(b) Curve A: Current–voltage curve for anodic stripping of
cadmium. Curve B: Residual current curve for blank.
(Reprinted with permission and adapted from R. D. DeMars
and I. Shain, Anal. Chem. 29 , 1825 (1957). Copyright by the
American Chemical Society)The Dissolved Oxygen Electrode and Biochemical Enzyme Sensors
There is a longstanding demand for a simple and portable instrument for the detection and measurement
of oxygen dissolved in water. Suitable electrodes have been developed and more recently have been
ingeniously used as the basis for a range of biochemical sensors.
Principles of Dissolved Oxygen Measurement
A typical commercial electrode is based on a galvanic cell comprising a lead