Thermo Fisher Scientific CyberScan pH 5000 - Manual (Page 90)

Instruction Manual CyberScan pH5500/ 5000
Analate Subtraction
The analate subtraction method is particularly useful in the event that
there is no ion specific electrode available to directly measure the
concentration of the ion of interest. This method employs the addition
of a sample of the ion of interest to a standard containing a different
ion of known concentration. The ion of interest will quantitatively react
with the ion in the standard, creating a complex and removing the ion
from the standard solution. The ion specific electrode is specific for
the ion in the standard solution and not for the ion of interest. The
difference in mV potential is used to calculate the concentration of the
ion of interest based upon this quantitative reaction.
8.3 Select Measurement Units
This screen allows you to select the units in which the meter will
report the concentration of the ion of interest. The current units are
displayed on the screen.
To Select Measurement Units
1. Access the Select Measurement Units screen from the Ion Setup
screen. The current units are displayed on the screen.
2. Use the arrow keys to highlight the desired units.
3. Touch enter to accept these units and return to the Ion Setup
screen.
OR
Touch exit to return to the ion setup screen, without making any
changes
ppm
mg/L
mole/L
Percent
mg/ml
enter
Current UNITS
Select Ion Measurement Units S
T
mg/ml
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