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NanoPhotometer
®
N120/
NP80/N60/N50/C40
User Manual Version 4.3.1
93
new NanoPhotometer
®
versions it may not be available after updating an
older firmware version.
Note
: Once the sample measurement is initiated it is no longer possible to
change the standard curve.
S
AVING AND
L
OADING
S
TANDARD
C
URVES
It is possible to save measured standard curves as a Stored Method. To save the standard
curve push the store method button
and enter a method name, select a folder and save
with the Store button.
Methods can be opened in the Stored Methods menu on the homescreen. Opening a saved
Protein Assay method shows a message with the option to load or remeasure the standard
curve.
C
ALCULATIONS
Protein concentration is determined using the standard curve by correlating absorbance
values of samples with known concentration to calculate the concentration of the unknown
sample. In order to maintain accuracy and precision please ensure that the R
2
value of the
standard curve is 0.95 or greater.