An interference correction equation is an equation that is used to correct the interference with the acquisition of the target element due to other elements or polyatomic ions that have a mass different from the acquired mass.
Interference equations are effective for elements that may have interference from polyatomic ions, and elements that have only one isotope.
When you select a tuning mode for which [MS/MS] is specified as the [Scan Type], you can set the masses for Q1 (2-260) and Q2 (2-275).
Periodic Table
Specify the elements related to the interference to be corrected. When you click an element name, the isotope masses and isotope ratios for the element are displayed in the following Mass table.
Mass table
When you select a mass from the periodic table, the isotope masses and isotope ratios for the element are displayed. When you select the check boxes for the masses to which interference correction equations are set, the equations are displayed in the right [Equation] table.
Corrected Element list
Select the elements to which the interference correction equations are set.
Mass list
Select the masses to which the interference correction equations are set.
Equation table
Select the positive or negative of the factor from the list in the [+] field, enter masses in the [Mass] field and also enter the factors of the interference correction equations in the [Multiplier] field.
For example, to specify the following interference correction equation:
66 = 66 - 69 x 0.00141,
configure the [Equation] table as follows:
|
Mass |
Multiplier |
|---|---|---|
+ |
66 |
1 |
- |
69 |
0.00141 |
[OK]
Applies the settings. The specified interference correction equation is displayed in the [Select Elements on Periodic Table] dialog box.
[Cancel]
Cancels the settings.