Sample preparation strategies aimed at developing analytical methods combined to the principles of Green Analytical Chemistry

• Grant number: 24/08380-1
• Support Opportunities: Regular Research Grants
• Start date: October 01, 2024
• End date: September 30, 2026
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Ivanise Gaubeur
• Grantee: Ivanise Gaubeur
• Host Institution: Centro de Ciências Naturais e Humanas (CCNH). Universidade Federal do ABC (UFABC). Ministério da Educação (Brasil). Santo André , SP, Brazil

Abstract

Green Chemistry emerged from the need to change some methods and processes in order to ensure less impact on the environment. It has its source in sustainability, which is essential to maintain quality of life and the conservation of the planet in the present and in the future. Green Analytical Chemistry (GAC) emerged as a related area to Green Chemistry, which aims to develop analytical methods linked to the principles of Green Chemistry. In fact, it is unacceptable for an analytical method that proposes the determination of potentially toxic compounds to use reagents and/or generate waste that is as toxic as the compound of interest. Always considering the principles of GAC, the projects that are developed by the research group at the Molecular and Atomic Spectroanalytical Laboratory (LEMA) have as their main objective to propose methods linked to Green Analytical Chemistry, evaluating strategies for: minimal handling and preparation of samples, reduction in the consumption of solvents and reagents, the reduction of energy consumption and waste generation, consequently avoiding or reducing environmental damage that may result from chemical analysis. However, we seek to maintain some analytical characteristics of the methods developed, such as: accuracy, selectivity and sensitivity, especially when analyzing traces in environmental samples. The main objective of this project is to propose methods to simplify sample preparation for the determination of metals in different liquid matrices. Considering the principles of Green Chemistry, its specific objectives are: to evaluate the use of different extractants, harmless to health and the environment, in liquid phase extraction (LPE) and explore the potential of producing standard for calibration aiming at analyzing liquids using techniques multi-element analytics such as Laser-induced breakdown spectroscopy (LIBS) and synthesis of NPs from lignin aiming to increase detectability in LIBS. Training professionals with knowledge in procedures linked to Green Chemistry and Green Analytical Chemistry, as well as expanding collaboration with other researchers from UFABC and other Institutions is also one of the objectives of this project. (AU)