Dispersion-convolution model for simulating peaks in a flow injection system

Examination of the temporal effect in a flow injection analysis system using multi-channel absorbance detection

“…The deviation of the peaks from Gaussian profile could occur under higher flow rates. The dispersion coefficient D* (cm 2 s −1 ) can be estimated by the temporal data, using the equation recently derived by Pai et al [43]:…”

Mathematical modeling of dispersion in single interface flow analysis

“…More recently by Pai et al adopted a dispersion-convolution model for simulating peak shapes in a single-line FIA system [9]. These models are essentially based on the axially dispersed plugflow model that has demonstrated to offer the best compromise between the mathematical simplicity and precision [10].…”

Computer simulation and theory of the diffusion- and flow-induced concentration dispersion in microfluidic devices and HPLC systems based on rectangular microchannels

“…Actually, additional contributions to HETP were observed in some cases. Pai et al proposed a dispersion-convolution model for simulating peaks in flow-injection systems and used an empirical correlation of the type D * = Ä 1 + Ä 2 v 0 + Ä 3 v 2 0 for the dispersion coefficient [37]. This would also yield a second-order equation for HETP where, compared with Eqs.…”

“…The performance of rectangular chromatographic columns has been analyzed first by Golay [16] (see also [21]), and was studied extensively in recent contributions [25][26][27][28][29][30][31][32][33]. In addition to theoretical treatments, numerical modeling of mass transfer has proved to be successful in tracing down the performance of such columns [33][34][35][36][37].…”