BWB XP - Calcium Correction

Calibration
Calibration Correction (Ca only)
For the Ca ion three correction options are available when not in
service mode.
1>Correct Blank [Ca]
2 Correct Calib
3 Correct for Na
Option 1 Correct Blank and option 2 Correct Calib both operate in
exactly the same way as for the Na, K, Li and Ba ions described
previously.
Option 3 Correct for Na enables Ca determination to be corrected in
the presence of Na. Interferences are discussed earlier in this
manual.
A single or multi-point/multi-ions calibration with a mixture of Na
and Ca in the ranges of interest must have already been performed.
To perform a correction for Na, select option 3 and press accept.
Aspirate a solution containing only Na at a concentration
approximately in the middle of the range of concentrations that are
expected in the samples.
Example: the following table shows calibration data and
concentrations, based on the example data a sample of Na with
concentration 35 should be used as this is approximately the mid
range of the samples.
Ca Correct
Aspirate Na
Flushing Chamber . . .
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31
Once all measurements are completed and successful, the
instrument will briefly display acquiring and saving the value.
It will then briefly indicate that the calibration is completed
and will return to the previous menu.
Element
Calibration points and
concentrations
1
2
3
4
Sodium (Na)
10
25
50
70
Potassium (K)
5
10
15
20
Calcium (Ca)
20
40
60
80
When aspirating the solution the instrument will undergo a
flushing routine prior to storing once a stable signal is
achieved. A timer is displayed; approximate times can vary
from 10 to 60 seconds dependent on stability of conditions.