Dr. Rayco Guedes Alonso is an Associate Professor at the Department of Chemistry, University of Las Palmas de Gran Canaria (ULPGC), and a researcher specialising in analytical methods for environmental monitoring and the study of emerging pollutants. His work focuses on developing and applying advanced chromatographic and sample-preparation techniques to detect steroid hormones, endocrine disruptors and other contaminants in complex environmental matrices such as wastewater, reclaimed water, sediments and biota. He has participated in numerous regional, national and European research projects focused on the occurrence, monitoring and removal of emerging pollutants in environmental systems. Dr. Guedes Alonso has authored over 30 peer-reviewed scientific publications and has presented his research at more than 50 international conferences. He recently served as Principal Investigator on a national research project funded by the Spanish Ministry of Science and Innovation on emerging pollutant elimination mechanisms in natural wastewater treatment systems, including microplastics, and maintains active international research collaborations and training activities.