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Analyte Addition
This method is similar to the Known Addition method, with the difference that an aliquot of sample is added to a
standard of known concentration. The sample and standard contain the same ion to be measured. The ion
concentration is then calculated using the difference in mV potential.
Analyte Subtraction
In the Analyte Subtraction method an aliquot of sample is added to a standard of known concentration, reacting
with the ion to be measured. The stoichiometric ratio between standard and sample must be known. The ion
concentration is then calculated using the difference in mV potential. The method is especially usefull when there
is no available ISE for the measured ion.
To set the Reading Mode:
• Press
while in
ISE Measure
mode.
• Press
.
• Use
or to select the Reading Mode option.
• Press
and use or to highlight the
desired option.
• Press
to confirm your selection or press
to
cancel operation.
Temperature – See pH Setup section, page 20.
Notes: • To access ISE Setup, press
and then .
• The Temperature Compensation option is also included in the Temperature parameter.
Temperature Compensation
This option allows the user to enable / disable the temperature
compensation for the measurement of Ion concentration.
To set the Temperature Compensation:
• Press
while in
ISE Measure
mode.
• Press
.
• Use
or to select the Temperature option.
• Press
and use or to highlight the
Temperature Compensation option.
• Press
and use or to enable / disable
the Temperature Compensation.