Laurel ThomasArrigo is Professor of Environmental Chemistry in the Institute of Chemistry at the University of Neuchâtel. Her research focuses on the biogeochemical cycling of elements and nutrients in soils and sediments and combines field- and laboratory-based methods with wet chemistry and spectroscopic techniques. Laurel completed her PhD in Soil Chemistry at ETH Zurich in 2017 and continued on as a Postdoc and Research Associate, where her research focused on the influence of organic matter during iron mineral transformations. In 2023, Laurel joined the University of Neuchâtel to lead the Environmental Chemistry Group.

• Mineral protection of organic carbon in soils / Swiss National Science Foundation Starting Grant # 226480
• Impact of organic carbon on iron mineral transformations
• Iron and carbon dynamics in high latitude, volcanic soils / Swiss National Science Foundation project # 207479
• Iron redox chemistry impact on nutrient and contaminant dynamics
• Role of iron minerals for carbon release during permafrost thaw / Swiss Polar Institute (project # SPIEG-2023-002 Project Detail – Swiss Polar Institute)

Bachelor in Biology, Bioethnology, Natural Systems

• Chimie Générale I + Exercices 

Bachelor in Medecine, Pharmacy

• Chimie Propédeutique + Exercices 

Bachelor in Medecine

• Travaux pratique de Chimie I

Bachelor in Natural Systems

• Environmental Chemistry
• Field measurement and sampling techniques

ThomasArrigo, L.K., Vontobel, S., Notini, L., Nydegger, T. (2023): Coprecipitation with Ferrihydrite Inhibits Mineralization of Glucuronic Acid in an Anoxic Soil. Environ. Sci. Technol. 57: 9204-9213. DOI: 10.1021/acs.est.3c01336

ThomasArrigo, L.K. and Kretzschmar, R. (2022): Iron speciation changes and mobilization of colloids during redox cycling in Fe-rich, Icelandic peat soils. Geoderma. 428: 116217. DOI: 10.1016/j.geoderma.2022.116217

Schulz, K., Kaegi, R., ThomasArrigo, L.K., Kretzschmar, R. (2022): Stabilization of ferrihydrite and lepidocrocite by silica during Fe(II)-catalyzed mineral transformation: Impact on mineral morphology and silica distribution. Environ. Sci. Technol. 56: 5929-5938. DOI: 10.1021/acs.est.1c08789

Gubler, R. and ThomasArrigo, L.K. (2021): Ferrous iron enhances arsenic sorption and oxidation by non-stoichiometric magnetite and maghemite. J. Haz. Mat. 402: 123425. DOI: 10.1016/j.jhazmat.2020.123425

ThomasArrigo, L.K., Kaegi, R., Kretzschmar, R. (2019): Ferrihydrite growth and transformation in the presence of ferrous iron and model organic ligands. Environ. Sci. Technol. 53: 13636-13647. DOI: 10.1021/acs.est.9b03952

ThomasArrigo, L.K., Byrne, J.M., Kappler, A., Kretzschmar, R. (2018): Impact of organic matter on Fe(II)-catalyzed mineral transformations in ferrihydrite-organic matter coprecipitates. Environ. Sci. Technol. 52: 12316-12326. DOI: 10.1021/acs.est.8b03206

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