Thermo Fisher Scientific Ion Selective Electrodes Iodide - Manual (Page 16)

Instruction Manual Iodide Electrode
16
standard used as ISA use ISA
electrode exposed check section entitled
to complexing agents
Complexation
air bubble on membrane remove bubble by re-dipping
probe
"Incorrect Answer" incorrect scaling
plot millivolts on the linear axis.
(but calibration of semi-log paper On the log axis, be sure that
curve is good) concentration numbers within
each decade are increasing with
increasing concentration.
incorrect sign be sure to note sign of the
millivolt number correctly
incorrect standards prepare fresh standards
wrong units used apply correct conversion factor:
10
-3
M = 127.0 ppm as I
-1
complexing agents check section entitled
in sample
Complexation