9
50
0
-50
100
10
100
1000
ppm as CO
2
1
10
100
1000
10
10
10
-4
-3
-2
~56 mV
electrode
potential
(mV)
ppm as CaCo
3
molarity
Figure 3
Typical Response Of The Carbon Dixoide Electrode
10-fold change
- Always rinse electrodes with distilled water between
measurements (see
Electrode Preparation
). Shake after rinsing
to prevent solution carry over. Blot dry. Do not wipe or rub the
sensing membrane.
- Allow all standards and samples to come to room temperature
for precise measurement.
- After immersion in solution, check electrode for any air bubbles
on membrane surface and remove.
