analytical function

A function which relates the measured value $C ^ a$ to the instrument reading, $X$ , with the value of all interferants, $C i$ , remaining constant. This function is expressed by the following regression of the calibration results.

$C ^ a = f X$

The analytical function is taken as equal to the inverse of the calibration function.

Source:

PAC, 1990, 62, 2167 (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2174