PerkinElmer Wallac 1420, User Manual

Page: 105 / 171

Tools menu
103
Normalization confirmation page
This appears after normalization has been successfully completed. It shows the measured
normalization values and requires you to confirm that you accept these values before they
are stored in the database. The two values produced by the normalization are the
background and the europium contribution to the samarium window. During actual dual
label measurements the europium counts in the europium windows are first calculated by
subtracting the background from the measured counts. Knowing the europium counts and
the normalization ratio the actual samarium counts in the samarium window can be
calculated by subtracting the europium contribution to the measured counts.
Additional information about the reliability of the factors is also shown so that you can be
sure that the results of the measurement are correct.
Note: to avoid accidental clicking of the Finish button, it only becomes visible after five
seconds have elapsed since the page was opened. During the time the Finish button is
disabled the text of the button is ‘Wait t’, where t is the remaining waiting time and it is
updated every second. When you click
Finish , the new values replace the old values in the
database.
The Back button is enabled only if the wizard moved to this page from the Measurement
warning page.