The signal of the detector has a wide dynamic range with over four orders of magnitude. The nature of the response is inherently nonlinear.

The Power Function Value (PFV) applies a power transformation to the data output of the detector. Power transformations can improve the linearity of response over a given range of interest.

The transformation is applied to the data output in real time. The data output is raised to the selected power.

As a standard, the Power Function is set to 1.00. For most applications and compounds, this is a good universal setting.

Guidelines for selecting a power function value

To optimize the power function value, observe the following guidelines:

  • An optimal power function value improves the linearity of response over a given range of interest.

  • Selecting the optimal value depends primarily on the analysis conditions and the desired range of quantitation.