7-5
a)
Symmetric
curves - The baseline is the line between the two current minima
in the range of E
p
+ 250 mV (Figure 73).
Figure 7-3.
Symmetric current response.
b)
Tail
curves - The baseline is the line between two points on the I vs. E curve
50 mV apart in a range of 250 mV preceding E
p
(Figure 7-4).
Figure 7-4.
Tailed current response.
c)
Sigmoidal
curves - Two baselines are required to measure the limiting
current. These are defined by two points on the I vs. E curve 50 mV apart in a
range of 250 mV either side of E
1/2
(the half-wave potential) (Figure 7-5).
Different values are chosen to find the lines of absolute minimum slope.
Figure 7-5.
Sigmoidal current response.
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