Dr. Andrea Speltini is an associate professor of analytical chemistry at the Department of Chemistry (University of Pavia, Italy). His research interests focus on the preparation of new sorbents for separation science, namely sample treatment (extraction, clean up, and preconcentration), chromatography, and of new photoactive materials for photocatalytic processes. He is involved in the development and validation of analytical methods for the trace determination of organic compounds in complex matrices, including environmental, biological, and food samples, with a focus on the principles of green sample preparation. An additional topic concerns analytical environmental studies for the reuse of waste biomass to obtain green hydrogen gas from water via sunlight-driven photocatalysis, in the circular economy vision. The results of his research are gathered in more than 80 scientific publications and have been presented in several oral communications in national and international congresses.