A method for estimating the limit of detection of a chromatographic procedure is described. It defines the detection limit as the analyte concentration that produces a chromatographic peak having a height equal to three times the standard deviation of the baseline noise. The latter quantity is estimated from the height of the largest noise fluctuation measured in a pre-selected chart interval. This relationship is developed through the use of the Camp-Meidell extension of the Bienayme-Tchebycheffinequality(拜勒米—切贝舍夫不等式) and information theoretical concepts. A simple equation, as well as a procedure for carrying out the calculation, is given.
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