Peak Coincidence Tests in Qualitative Chromatographic Analysis: Taking into Account the Reproducibility of Retention Characteristics

Probabilistic algorithms are proposed for calculating the values of chromatographic peak coincidence. These algorithms take into account the standard deviation of normally distributed retention characteristics () and the selectivity of the tabulated values. At a high selectivity, the 3 value is recommended for the assignment of well-reproducible and widely spaced peaks. In more complicated cases, it is desirable to use values that take into account the number of repeated tests and minimize the integrated probability of errors of first and second kinds, which are associated with a random shift of peaks in chromatographing a sample.