ANALYTICAL ERROR

EPMA Probe

ANALYTICAL ERROR

This calculation is for analytical sensitivity of each line (= one measurement), considering _both_ peak and background count rates (Love and Scott, 1974). It is a similar type of statistic as the 1 sigma counting precision figure, but it is presented as a percentage in the Probe for EPMA statistical printout.

 

          Where :                       is the total peak counts

                                  is the total background counts

                                   is the peak count time

                                   is the background count time