R. Carlos-Marquez

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About

R. Carlos-Marquez is a leading figure in radiochemical separations, whose work has fundamentally advanced the analysis of actinide elements. His primary research focuses on developing rapid, high-yield extraction chromatography methods for critical nuclear materials. His most influential contribution, the "Single-column extraction chromatographic separation of U, Pu, Np and Am," published in 2002 with 65 citations, introduced a streamlined approach using commercially available UTEVA resin. This method achieves superior recoveries—over 90%—for uranium, plutonium, neptunium, and americium in a single pass, while enabling direct loading of separated fractions onto filaments for mass spectrometry. This innovation dramatically reduced sample preparation time and complexity, setting a new standard for environmental monitoring, nuclear forensics, and safeguards analysis. Carlos-Marquez’s work is widely recognized for its practical impact, providing a robust, reproducible tool that has been adopted by laboratories worldwide. His contributions continue to underpin critical applications in nuclear security and environmental radiochemistry, making him a key reference for researchers seeking efficient, reliable actinide separation techniques.