if a method is well planned and executed.
the major contributor to the overall precision are the standard deviation of the analyse in the sample, represented by S.sample, and the standard deviation of the technique used for the measurement, represented by s.technique. The impact of each contributing factor on the overall method of analysis can be illustrated in Equation 1. In many methods, the sample's contribution to the method precision is generally greater than that of the contribution from the analytical technique used for measurement.