All settings on this tab are used to define qualifiers, for example by the Add/Update MS Compounds function.
Parameter | Relevant for ... | Description |
|---|---|---|
Qualifier RT window (± min) | All qualifiers, on EIC or SIM signals. | Acceptable retention time window for a qualifier, compared to the retention time of the target compound. Used when adding qualifiers to find the corresponding peaks. Used to evaluate qualifiers as Passed or Failed during processing. |
Qualifier ratio reference signal for compound on TIC signal | Compounds on TIC signal | Define how the required response ratio (Rsp (%) column) is calculated: MS base peak SIM/EIC: response of qualifier /response of compound EIC or SIM TIC: response of qualifier/response of compound TIC. If you change this setting, update the qualifier responses (see Update qualifier responses) This parameter only applies if a compound is defined on a TIC signal. It is ignored if the compound is defined on an EIC or SIM signal. See MS qualifier calculations. |
Qualifier response window (%) | All qualifiers, on EIC or SIM signals. | Define how much the response percentage of a qualifier signal may differ from the value defined under Rsp (%) . Used to evaluate qualifiers as Passed or Failed during processing. This value is used as a default value when you use the Add/update MS compounds function. You can adjust the value for each single qualifier in the compound table (Rsp window (%) column in the Qualifier group details section, see compound table). |
Qualifier response window type | All qualifiers, on EIC or SIM signals. | Define how the response window of a qualifier ion is interpreted. For example, the qualifier ion has a response percentage of 50 %, and the Qualifier response window (%) is 20%: Absolute: The response of the qualifier ion must be between 30 % and 70 %. Relative: The response of the qualifier ion must be between 40 % and 60 %. |
For scan-only data, add/update compounds on | SCAN data. | When Add/Update MS Compounds is executed on Scan data: Define if the application shall set the compound signal to the TIC or the MS base peak EIC. |
Number of qualifiers used for scan data | SCAN data. | The application looks for the given number of most abundant peaks in the MS spectrum of a compound. Only applied when Add/Update MS Compounds is executed on scan data. |
Create an MS quantitative method
Learn more about qualifier signals (MS)
Add/update MS compounds automatically
How does "Add/Update MS Compounds" work?
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