Development of molecularly imprinted polymers employing bar adsorptive microextraction for analysis of triazines and sulfonylureas using high performance liquid chromatography (HPLC)

• Grant number: 14/20424-2
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• Start date: February 01, 2015
• End date: June 30, 2015
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Fernando Mauro Lanças
• Grantee: Felipe Nascimento Andrade
• Supervisor: José Manuel Florêncio Nogueira
• Host Institution: Instituto de Química de São Carlos (IQSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Institution abroad: Universidade de Lisboa, Portugal
• Associated to the scholarship: 11/09898-4 - Development of molecularly imprinted polymer and use for the sample preparation and analysis of triazine and sulfonylurea in maize using high performance liquid chromatography (HPLC)., BP.DR

Abstract

The mid-twentieth century, developments occurred in both productivity and quality in agriculture, because of the increased development in agricultural production was increased application of herbicides, among them there are the triazines and sulfonylureas, which may cause serious risks to human health and the environment. The most used techniques for the separation and analysis of these compounds is the high performance liquid chromatography . However, is essential sample preparation. The search for techniques simple, low cost, less risk of contamination by environmental and occupational solvents predominates in the area of analytical chemistry. Among them we can highlight the bar adsorptive microextraction, providing methods with greater sensitivity, clean-up and pre-concentration of the analytes. Another desired aspect for sample preparation is to obtain a higher selectivity to sorbents used as compared to conventional ones, for example, modified silica (eg. C18), Amberlite XAD resins, and others. In this context, we should note the concept of molecularly imprinting technology, particularly with molecularly imprinted polymers. Thus, this project aims the development of molecularly imprinted polymers and modern strategies for sample preparation employing BA¼E based on MIP selective to triazines and sulfonylureas, and subsequent HPLC analysis, with application in environmental and food matrices. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

ANDRADE, FELIPE NASCIMENTO; IDE, ALESSANDRA HONJO; NENG, NUNO DA ROSA; LANCAS, FERNANDO MAURO; FLORENCIO NOGUEIRA, JOSE MANUEL. Determination of trace levels of triazines in corn matrices by bar adsorptive microextraction with a molecularly imprinted polymer. JOURNAL OF SEPARATION SCIENCE, v. 39, n. 4, p. 6-pg., 2016-02-01. (14/20424-2, 11/09898-4)

ANDRADE, FELIPE NASCIMENTO; IDE, ALESSANDRA HONJO; NENG, NUNO DA ROSA; LANCAS, FERNANDO MAURO; FLORENCIO NOGUEIRA, JOSE MANUEL. Determination of trace levels of triazines in corn matrices by bar adsorptive microextraction with a molecularly imprinted polymer. JOURNAL OF SEPARATION SCIENCE, v. 39, n. 4, SI, p. 756-761, FEB 2016. (11/09898-4, 14/20424-2)