A5001848993- Pharmaceutical and Antibiotic Environmental Impacts
- Analytical chemistry methods development
- Toxic Organic Pollutants Impact
- Analytical Chemistry and Chromatography
- Mass Spectrometry Techniques and Applications
- Effects and risks of endocrine disrupting chemicals
- Environmental Chemistry and Analysis
- Pesticide Residue Analysis and Safety
- Geochemistry and Geologic Mapping
- Healthcare and Environmental Waste Management
- Water Quality and Pollution Assessment
- Advanced Chemical Sensor Technologies
- Water Treatment and Disinfection
- Antibiotics Pharmacokinetics and Efficacy
- Forensic Toxicology and Drug Analysis
- Odor and Emission Control Technologies
- Metabolomics and Mass Spectrometry Studies
- Ecology, Conservation, and Geographical Studies
- Plant Micronutrient Interactions and Effects
- Biological Activity of Diterpenoids and Biflavonoids
- Peatlands and Wetlands Ecology
- Biochemical Analysis and Sensing Techniques
- Microplastics and Plastic Pollution
- Agricultural safety and regulations
- Wastewater Treatment and Nitrogen Removal
University of Bern
2018-2019
Oregon State University
2017
Bruker (Switzerland)
2009
Institute of Environmental Protection
1999
Federal Office for Agriculture
1994-1996
University of British Columbia
1988
Abstract Background and aims Wastewater‐based epidemiology is an additional indicator of drug use that gaining reliability to complement the current established panel indicators. The this study were to: (i) assess spatial temporal trends population‐normalized mass loads benzoylecgonine, amphetamine, methamphetamine 3,4‐methylenedioxymethamphetamine (MDMA) in raw wastewater over 7 years (2011–17); (ii) address overall by estimating average number combined doses consumed per day each city;...
Insect herbivores depend on their host plants to acquire macro- and micronutrients. Here we asked how a specialist herbivore damaging maize pest, the western corn rootworm, finds accesses plant-derived We show that root-feeding larvae use complexes between iron benzoxazinoid secondary metabolites identify as host, forage within root system, increase growth. Maize these same benzoxazinoids for protection against generalist and, shown here, uptake. an transporter allows rootworm benefit from...
Maize and wheat independently evolved the capacity to control plant defenses through O -methylation of regulatory benzoxazinoids.
Abstract This report aims to give a general view of the present state contamination agricultural soils and manures like sewage sludge, liquid manure compost in Switzerland with two groups organic micropollutants: polynuclear aromatic hydrocarbons (PAH) polychlorinated biphenyls (PCB). Overall PAH concentrations for ranged between 60–575 μg [sgrave] PAH/kg dw (mean value 175 μg/kg dw). The corresponding values other matrices were: cattle slurries 87–309 (165 μg/kg), pig 66–339 (143 sludge...
A method using HRGC ion trap MS/MS for measuring simultaneously amino metabolites and the parent compounds, nitro musks, an important group of organic fragrance components found in sewage sludges, was developed. The monoamino were synthesized characterized by 1H/13C NMR mass spectroscopy. Among musk ketone major compound, at average concentration 5 microg/kg dry (dm) whereas xylene detected only one sample (30 dm). Three identified, namely,...
The aim of the present study was to explore capabilities combination 1H NMR (proton nuclear magnetic resonance) mixture analysis and HPLC-SPE-NMR/TOF-MS (high-performance liquid chromatography coupled solid-phase extraction resonance time-of-flight mass spectrometry) for characterization xenobiotic contaminants in groundwater samples. As an example, extracts two samples taken from a former ammunition destruction site Switzerland were investigated. spectra postcolumn SPE enriched compounds,...
A simple solvent extraction by ethyl acetate without subsequent cleanup was used to determine 16 phthalic acid esters (PAEs), including bis(2-ethylhexyl) phthalate (DEHP), in sewage sludge samples from different catchment areas. The compounds were separated on a gas chromatographic capillary column with nonpolar HT-8 stationary phase. For most of the PAEs, internal standard quantification deuterated dibutyl (DBP) and DEHP best achieved using electron ionization mass spectrometry selected-ion...