Development of highly selective nanoporous materials to identify metabolite of the herbicide diuron

• Grant number: 20/01493-4
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: June 01, 2020
• End date: December 31, 2020
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Maria Del Pilar Taboada Sotomayor
• Grantee: Thiago Lima Ferreira
• Host Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil

Abstract

This project aims to develop an analytical method based on biomimetic systems that will perform the determination of 3,4-dichloroaniline, metabolite of the herbicide Diuron, in river waters. The biomimetic system will take place through the synthesis of Molecularly Imprinted Polymer, also known as MIP (Moleculary Imprinted Polymers). The method used will be precipitation, and then, after the washing process, initial tests will be carried out with the polymeric material in solutions that purposely contain the analyte in different concentrations to analyze its efficiency initially. Then, the verification of its morphology will be performed by Scanning Electron Microscopy (SEM) and High Performance Liquid Chromatography (HPLC) will be the technique used for more specific quantification of the analyte in studies of adsorption of material performance. Following this, environmental samples will be used, more specifically, river samples, will effectively analyze the material's selectivity. Subsequently, the synthesized material, improved, characterized and analyzed, will be used in the construction of thin layer chromatography (TLC) plates, evaluating various supports as well as several techniques for depositing of the material in such supports, in order to ascertain the separation of the analyte of interest starting from a complex sample, such as river waters.