Special methods
32
NANOCOLOR
®
UV
/
VIS
II and
NANOCOLOR
®
VIS
II V 1.1 / 10.2017
1100 nm
range (
NANOCOLOR
®
UV
/
VIS
II) or 320 nm - 1100 nm range (
NANOCOLOR
®
VIS
II)
can be entered.
Zero link:
When the "Barcode link" option is used, the "Zero link" option is enabled. When the
corresponding test is selected, the zero stored for the MACHEREY-NAGEL tube test will be
used for the calculation. This allows a measurement without a zero solution. This option is
available only for the test which was selected in the context of the barcode link and for which
a zero is already stored in the photometer.
Cuvette size:
Select the cuvette size from the displayed list box. When methods are carried
out, the photometer detects automatically whether the correct cuvette is being used.
Formula:
The formula field is where the factors for the final calculation of the measurement
result are entered. Formulas to the 4th degree can be entered. Tapping on the individual
fields will open a numeric keypad for entering numerical values
.
Negative factors can be
depicted by entering a minus sign before the numeric value.
Please note: The formula has the format y = F0 + F1*E + F2*E
2
+ F3*E
3
+ F4*E
4
with E as
absorbance value and F as factors of the equation. The factors are input as an equation, as
determined by a plot of concentration values (x-axis) against the absorbance values (y-axis).
After successfully entering all parameters, confirm the entries with
. The method will be
saved and included in the list of user methods (see section 5.4.2.1). The properties that were
entered can be edited there via the
icon. A report on the special method properties and
data can be printed by pressing the
icon and selecting "Print." The entries "Export to
PNG file" and "Export to CSV file" allow the method report to be exported to a connected
storage medium.
5.4.2.3
Calibration
The Calibration menu is opened by pressing the
icon. This menu is used to determine
absorbance values for standard solutions of known concentrations as part of creating a user-
defined special method (see Figure 34).
Figure 34: Selection of the mode for calibrating a special method
Summary of Contents for NANOCOLOR UV/VIS II
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