The page discusses the IUPAC's definition of a method's detection limit as the smallest signal indicating the presence of an analyte, distinct from a blank signal. It delves into statistical concepts ...The page discusses the IUPAC's definition of a method's detection limit as the smallest signal indicating the presence of an analyte, distinct from a blank signal. It delves into statistical concepts like type 1 and type 2 errors, explaining the probability associated with detecting an analyte.