About Recalibrate Interferents
This page provides information on how the analyte and interferent calibrations recalculated.
How are the Analyte and Interferent Calibrations Recalculated?
In order to compensate for changes in the instrument response over time, both the analyte and interferent calibrations must be adjusted for changes in sensitivity. This is done during the scheduled recalibrations. To recalibrate the interferent wavelengths, 'Recalibrate interferents' must be enabled on the IEC page.
A recalibration can be inserted at any stage of the analysis after the IEC block. Recalibration will start immediately after the IEC block calibration and further recalibrations can be specified on the Sequence page.
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When a new worksheet is created from a template, the user needs to start the analysis from the recalibration. If the analysis is started from the beginning, effectively remeasuring the stored calibration, then the IEC block will be remeasured and the factors will be recalculated. When deselected on the Analysis page, IEC Solutions hides the IEC block from the sequence, freeing up sample tubes in the standards rack on the autosampler. Interferent standards are not measured and IEC factors are not calculated when this is deselected. Either open up the worksheet from a template with IEC factors already existing or enter the IEC factors into the IEC factors table. |
In this example, the interferent is Manganese and Mn 403.076 nm is used as both an 'interferent' and 'analyte' line.
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Where:
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Recalibration Start
Recalibration should start from the calibration blank (or the first calibration solution after the IEC block) to keep the IEC factor values constant and avoid reanalyzing the IEC block solutions.
Analyte Column
The Mn 403.076 'Analyte' line displays recalibration standard concentrations and analyte concentrations for the analyzed samples with IEC applied.
Interferent Column
The Mn 403.076 'Interferent' column displays only the IEC interferent concentrations for the analyzed samples.