Correction factors

OpenLab CDS allows you to use different multipliers and dilution factors to compensate for variations in response factors, concentrations, sample dilutions, compound purities, and for converting units.

The following correction factors are available:

(A)	Sample-specific compound multipliers (1-5) and dilution factors (1-5). You set these factors in the Compound amounts tab of the Injection List window (only for calibration standards). They are used in the calibration procedures to compensate, for example, for non-default injetion volumes, or dilutions of stock solution. The corrected amount of a compound in a calibration standard is calculated using these factors. The corrected amount is then used to draw the calibration point on the calibration curve. Modifying sample-specific compound multipliers and dilution factors therefore affects the calibration curve. It impacts both the resulting amount and the resulting concentration of the specific compound in all injections using the calibration curve.
(B)	Sample multipliers (1-5) and dilution factors (1-5) You set these factors in the Injection List table (for any sample type, for all compounds). They do not affect the calibration curve. They are used after calibration calculations, to calculate a concentration from the resulting amount. Modifying these factors therefore affects the concentration values of all compounds in the results of the specific injection. See Concentration and mass%
(C)	Compound multiplier You set this factor per compound in the processing method. It does not affect the calibration curve. It is used after calibration calculations, to calculate a concentration from the resulting amount. Modifying this factor therefore affects the concentration values of the specific compound in the results of all injections. See Concentration and mass%

Sample multipliers (B) and compound multiplier (C) can be combined. The resulting multiplier is calculated as:

Multiplier = Compound Multiplier * Sample Multiplier 1 * Sample Multiplier 2 * ...

It is not recommended to combine Compound multiplier (C) and sample-specific compound multipliers (A).