Expanding capabilities of environmentally friendly analytical chemistry. Capillary electrophoresis and microextraction techniques for determining brominated flame retardants in samples of environmenta
Abstract
A vast number of synthetic organic compounds have been produced for industrial, domestic, or agricultural use. Flame retardants (FR) are synthetic compounds used as additives in polymers products for safety purposes to reduce their flammability, and many of them are also used as plasticizers. Because these substances are not chemically bonded to polymers, they can easily release to the atmosphere and thus, to the environment, by volatilization or abrasion of the product, as well as during its manufacturing, use or even after disposal. Brominated flame retardants (BFRs) have been extensively used, but they were banned in most countries due to the evidence of toxicity, persistence, and accumulation in environmental compartments. Thus, BFRs are categorized as persistent organic pollutants, while OPEs are emerging contaminants. In recent years, the development of fast, precise, accurate and sensitive methodologies based on green chemistry has become an imperious issue. The current trend is towards simplification and miniaturization of the sample-preparation step and decreased in the quantities of chemical reagents as well as samples. The applications of capillary electrophoresis (CE) in the environmental analysis are in the explosion and the analysis of non-ionic compounds is included. The aim of the proposal focuses on broadening and strong analytical skill of the group by developing and validating analytical methodology based on capillary electrophoresis with UV(DAD) detector (CE-UV(DAD)) for analyzing flame retardants (brominated flame retardants) in samples of environmental interest (Ex.: sediment, hair). The proposed analytical strategies will be based on the use of micellar and/or pseudo-micellar media for achieving the electrophoretic resolution of the analytes. Additionally to the development of the instrumental analysis, sample preparation methodology based on green chemistry will be developed (or implemented) for coupling it to the developed instrumental analysis. The project will be developed in the Laboratory of Environmental Chemistry (LQA) of the Argentinian Institute of Nivology, Glaciology and Environmental Science at Scientific and Technological Center of National Council of Scientific and Technical Research-Mendoza (IANIGLA, CCT CONICET-Mendoza) in Mendoza city, Argentina. The group is headed by Dr. Jorgelina Altamirano.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Dec 04, 2019
- Source ID
- W911NF1910423
Entities
People
- Jorgelina Altamirano
Organizations
- Army Contracting Command
- United States Army