Separation of organic acid compounds from biological samples by zinc oxide nanoparticles-chitosan using genetic algorithm based on response surface methodology and artificial neural network

In this study, zinc oxide nanoparticles-chitosan based on solid phase extraction and high performance liquid chromatography was developed for the separation of organic compounds including citric, tartaric and oxalic acids from biological samples. For simulation and optimization of this method, the hybrids of genetic algorithm with response surface methodology (RSM) and artificial neural network (ANN) have been used. The predictive capability and generalization of both predictive models (RSM and ANN) were compared by unseen data. The results have shown the superiority of ANN compared with RSM. At the optimum conditions, the limits of detections of 2.2-2.9 mu gL(-1) were obtained for the analytes. The developed procedure was then applied to the extraction and determination of organic acid compounds from biological samples. Copyright (C) 2014 John Wiley & Sons, Ltd.