CHAPTER 6
116 PerkinElmer Life and Analytical Sciences
Alpha: Half Life
Enter the numeric half life value. See the next entry.
Alpha: Half Life Units
Click on the field to display the available units to apply to the numeric half-life
value. Highlight and mouse click on the desired unit.
Discriminator Setting
This is the discriminator value corresponding to the Alpha Beta Standards Set
linked (associated) with this nuclide, if any. If no Alpha Beta Standard set is
linked, then you can enter the discriminator value manually.
Count Mode
If an Alpha Beta Standard Set is referenced by the nuclide, then Normal (Count
Mode) is displayed. If no Alpha Beta Standard set is linked then this field remains
blank.
Alpha Beta Standards Library
The Alpha Beta Standards window allows you to define an Alpha Beta Standard
Set for use with Alpha Beta Assays. Once the information is entered in the Alpha
Beta Standards Library, an Alpha Beta Standards Assay can be run to establish the
instrument’s optimum pulse discriminator value. This value is then used to
discriminate between Alpha and Beta nuclides in Alpha Beta Assays.
Figure 6-3 Alpha Beta Standard Library Window.
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