A mathematical expression was previously derived for the concurrent determination of two rate constants, k 1 and k 2, for two consecutive irreversible first-order reactions. This expression required the measurement of slopes in order to ascertain the required reaction rates. In this paper, a relational database manager (DB) was employed to estimate values of the two rate constants using this expression. For this purpose, a computer algorithm was developed using the Paradox 3 DB which possesses a powerful script language ( pal). Database analyses were carried out using both theoretical and experimental data. The pal script employed is described and the resulting k 1 and k 2 values are compared with the assumed and reported values.