I want to quantify the emerging micro and nano-plastics of wastewater/industrial effluents before and after adsorption respectively to mathematical modelling indeed. Due to the successful removal and to investigate the actual efficiency of adsorbent it is early need to optimize the experimental data with the prominent adsorption isotherm models this is why I need to quantify the amount of emerging micro and nano-plastics as pollutants which belongs with water indeed. I know about FTIR particularly but not sure enough about it that I think only this technique is not enough to provide the much more accurate solution. thus I need the help of expert who has a clear knowledge about it. Thanks a lot to all in advance.