Agarwal, A.; Torrent, L.; Indlekofer, J.; Bouchet, S.; Culleton, L.P.; Biollaz, S.M.A.; Ludwig, C. "Sampling to analysis: simultaneous quantification of siloxanes and sulfur compounds in biogas for cleaner energy." Progress in Energy 8 (2025): -. Agarwal, A.; Torrent, L.; Indlekofer, J.; Madi, H.; Culleton, L.P.; Biollaz, S.M.A.; Ludwig, C. "From proof to practice− Sampling and analysis for simplified quantification of siloxanes in biogas." Bioresource Technology 429 (2025): -. Kilchhofer, K; Ammann, M.; Torrent, L.; Cheung, R.K.Y.; Alpert, P.A. "Copper accelerates photochemically induced radical chemistry of iron-containing secondary organic aerosol (SOA)." Atmospheric Chemistry and Physics 25 (2025): 8061-8086. Maxim, F.; Stoian, G.S.; Toma, E.E.; Borca, C.N.; Müller Gubler, E.A.; Atkinson, I.; Torrent Fabrega, L.; Ludwig, C.; Testino, A. "Carbon-supported ZnO materials for sulfur capturing in supercritical water." Scientific Reports 15 (2025): -. Szczeszak, A.; Agarwal, A.; Torrent, L.; Schuler, A.J.; Grzyb, T.; Przybylska, D.; Ludwig, C.; Patil, A.B. "Recycling rare earth metals from luminescent fibers by solvent extraction." Resources, Conservation & Recycling Advances 25 (2025): -. Cen, T.; Zhang, Z.; Torrent, L.; Müller, E.; Ludwig, C.; Testino, A. "Airborne metal nanoparticles released by azides detonation: determination and potential public exposure." Scientific Reports 14 (2024): 17312-. Cen, T. ; Zhao, Y.-B.; Testino, A.; Wang, J.; Torrent, L.; Ludwig, C. "Dilution versus fractionation: Separation technologies hyphenated with spICP-MS for characterizing metallic nanoparticles in aerosols." Journal of Aerosol Science 177 (2024): 106317-. Cen, T.; Torrent, L.; Testino, A.; Ludwig, C. "Rotating disk diluter hyphenated with single particle ICP-MS as an online dilution and sampling platform for metallic nanoparticles characterization in ambient aerosol." Journal of Aerosol Science 175 (2024): 106283-. Patil, A.B.; Thalmann, N.; Torrent, L.; Tarik, M.; Struis, R.P.W.J.; Ludwig, C. "Surfactant-based enrichment of rare earth elements from NdFeB magnet e-waste: Optimisation of cloud formation and rare earths extraction." Journal of Molecular Liquids 382 (2023): 121905-. Marguí, E.; Torrent, L. "Simple method for Cr(VI) determination by liquid-liquid microextraction combined with total reflection X-ray fluorescence spectrometry: Application to water samples and industrial extracts." Spectrochimica acta. Part B, Atomic spectroscopy 204 (2023): 106682-. Koolen, C.D.; Torrent, L.; Agarwal, A.; Meili-Borovinskaya, O.; Gasilova, N.; Li, M.; Luo, W.; Zuttel, A. "High-throughput sizing, counting, and elemental analysis of anisotropic multimetallic nanoparticles with single-particle inductively coupled plasma mass spectrometry." ACS Nano 16 (2022): 11968-11978. Patil, A.B.; Tarik, M.; Schuler, A.J.; Torrent, L.; Struis, R.P.W.J.; Ludwig, C. "Insights about inductively coupled plasma optical emission spectroscopy interferences of major rare earth elements in complex e-waste feeds." Spectrochimica acta. Part B, Atomic spectroscopy 191 (2022): 106399-. Mònica Iglesias; Laura Torrent "Silver Nanoparticles and Ionic Silver Separation Using a Cation-Exchange Resin. Variables Affecting Their Separation and Improvements of AgNP Characterization by SP-ICPMS." Nanomaterials 11 (2021): 2626-. Torrent, L.; Iglesias, M.; Marguí, E.; Hidalgo, M.; Verdaguer, D.; Llorens, L.; Kodre, A.; Kavčič, A.; Vogel-Mikuš, K. "Uptake, translocation and ligand of silver in Lactuca sativa exposed to silver nanoparticles of different size, coatings and concentration." Journal of Hazardous Materials 384 (2020): -. Torrent, L.; Marguí, E.; Queralt, I.; Hidalgo, M.; Iglesias, M. "Interaction of silver nanoparticles with mediterranean agricultural soils: Lab-controlled adsorption and desorption studies." Journal of Environmental Sciences 83 (2019): 205-216. Torrent, L.; Laborda, F.; Marguí, E.; Hidalgo, M.; Iglesias, M. "Combination of cloud point extraction with single particle inductively coupled plasma mass spectrometry to characterize silver nanoparticles in soil leachates." Analytical and Bioanalytical Chemistry 411 (2019): 5317-5329. Bahadir, Z.; Torrent, L.; Hidalgo, M.; Marguí, E. "Simultaneous determination of silver and gold nanoparticles by cloud point extraction and total reflection X-ray fluorescence analysis." Spectrochimica acta. Part B, Atomic spectroscopy 149 (2018): 22-29. Torrent, L.; Iglesias, M.; Hidalgo, M.; Marguí, E. "Determination of silver nanoparticles in complex aqueous matrices by total reflection X-ray fluorescence spectrometry combined with cloud point extraction." Journal of Analytical Atomic Spectrometry 33 (2018): 383-394. Torrent, L., Laborda, F., Iglesias, M., Marguí, E., Hidalgo, M. "Combinación de la extracción en punto de nube con TXRF y SP-ICPMS para la determinación de nanopartículas de plata en muestras acuosas." Boletín de la Sociedad Española de Química Analítica 61 (2018): 25-28. García-Florentino, C.; Maguregui, M.; Marguí, E.; Torrent, L.; Queralt, I.; Madariaga, J.M. "Development of total reflection X-ray fluorescence spectrometry quantitative methodologies for elemental characterization of building materials and their degradation products." Spectrochimica acta. Part B, Atomic spectroscopy 143 (2018): 18-25. Torrent, L.; Iglesias, M.; Laborda, F.; Marguí, E.; Hidalgo, M. "Estudi del comportament de les nanopartícules de plata en sòls agrícoles." Revista de la Societat Catalana de Química (2018): 74-85. Torrent, L.; Iglesias, M.; Hidalgo, M.; Marguí, E. "Analytical capabilities of total reflection X-ray fluorescence spectrometry for silver nanoparticles determination in soil adsorption studies." Spectrochimica acta. Part B, Atomic spectroscopy 126 (2016): 71-78.