César Ricardo Teixeira Tarley is currently a full professor at the State University of Londrina (UEL) teaching undergraduate courses and supervising research projects. He has experience in chemistry with emphasis on the development of solid-phase preconcentration systems using chemically imprinted polymers, nanomaterials and mixed oxides, cloud point and dispersive liquid-liquid microextraction coupled to chromatographic, electroanalytical, and spectroanalytical techniques. Tarley has published more than 250 papers, 15 chapter books, 8 patents and supervised more than 40 doctoral and master's theses.