Including a dilution or concentration factor

You can include a dilution or concentration factor to a sample before running an analysis, or when processing existing data, by typing a value in the Sample Factor column. If the measured concentration could be greater than the ULOQ and the concentration curve is extrapolated and potentially uncertain, you can dilute the sample and reacquire data to ensure that any calculated concentration is within limits.

The value applies the appropriate multiplication or division to the calculated concentration. Type a value between 1 and 1000 to specify a dilution, or between 0.001 and 1 to specify a concentration. For example, if the sample was diluted by a factor of four to a quarter of its original concentration, the Sample Factor column should contain 4 (not 0.25).

The sample factor applies only to injections of type Unknown and System Suitability.

In the QUAN Review application, the values of the sample factor, measured concentration, and calculated concentration are displayed for each injection, and bar graphs are displayed for both the measured and the calculated concentrations.