Qualifier Setup tab

Qualifier Setup tab

Qualifier RT window (± min)

For each potential qualifier ion an Extracted Ion Chromatogram is generated. The EIC is only used as a qualifier signal if the retention time of its peak lies within the defined time range compared to the target compound. See About qualifier ions.

Qualifier response window (%)

Define how much the response of a qualifier signal may differ from the target signal. The value is given in percent.

This value is used as a default value when you create an MS quantitative method. You can adjust the value for each single qualifier in the compound table (Rsp (%) column in the Qualifier group details section).

Qualifier response window type

Define how the response window of a qualifier ion is interpreted. For example, the target ion has a response of 50 %, and the qualifier ion has a response percentage of 20 %. The response window for the qualifier is then calculated as follows:

  • Absolute: The response of the qualifier ion must be between 30 % and 70 % of the target ion response.

  • Relative: The response of the qualifier ion must be between 40 % and 60 % of the target ion response.

Number of qualifiers for scan data

The application looks for the given number of most abundant peaks in the MS spectrum of a compound. See About qualifier ions.