Kinetic study of supercritical fluid extraction of organochlorine pesticides from ginseng by Simulink® simulation

The development of quantitative supercritical fluid extraction (SFE) methods for recovery of organochlorine pesticides from environmental samples requires three steps including analytes partition from the matrix into the bulk fluid, removal from the extraction cell and efficient collection. In early mass transfer studies, many empirical or theoretical models have been introduced to research the kinetic factors affecting extraction yields. In this study, the first time, the kinetic process of supercritical fluid extracting organochlorine pesticides (OCPs) from ginseng was simulated by Matlab/Simulink® interface based on the experimental data. The results showed that, within the permitted error range, the kinetic process simulation via Simulink® is another alternative approach, which is more convenient than conventional computer program.