A5020611843- Analytical chemistry methods development
- Heavy metals in environment
- Recycling and Waste Management Techniques
- Microplastics and Plastic Pollution
- Geochemistry and Elemental Analysis
- Mass Spectrometry Techniques and Applications
- Mercury impact and mitigation studies
- Toxic Organic Pollutants Impact
- Marine and coastal ecosystems
- Isotope Analysis in Ecology
- Environmental Toxicology and Ecotoxicology
- Geology and Paleoclimatology Research
- Coastal wetland ecosystem dynamics
- Geochemistry and Geologic Mapping
- Methane Hydrates and Related Phenomena
- Extraction and Separation Processes
- Analytical Chemistry and Chromatography
- Radioactive element chemistry and processing
- Marine Biology and Ecology Research
- Marine and coastal plant biology
- Marine animal studies overview
- Arctic and Antarctic ice dynamics
- Advanced Proteomics Techniques and Applications
- Marine Biology and Environmental Chemistry
- Radioactive contamination and transfer
Helmholtz-Zentrum Hereon
2016-2025
Institute of Marine and Coastal Research
2005-2021
Philips (United Kingdom)
2016-2021
Coastal Impact
2015-2016
Max Planck Society
2003-2015
Leuphana University of Lüneburg
2003-2006
Due to an assumed lack of anionic binding sites (most plastics are non-polar), scientists long considered virgin particulate inert towards metal ions. However, we proved significant sorption microplastics at neutral pH and release in a solution mimicking gastrointestinal chemistry serving as proof-of-principle for environmental human bioavailability. Competitive ion-exchange incubation experiments comprised 55 metals metalloids. Fast kinetics were observed with 45 %–75 % As, Be, Bi, Cr, Fe,...
15 filtration samples were collected at eight locations onboard the RV Sonne (cruise SO279 in 2020) from 6 m water depth using a fractionated stainless-steel unit. The size fraction > 300 μm was visually examined and potential microplastic particles analyzed by ATR-FTIR spectroscopy. treatment of class 20 < d based on enzymatic-oxidative microwave-assisted "one-pot" matrix digestion conjunction with analysis microplastics time-efficient LDIR imaging. Total number concentrations ranged 47 to...
Photodegradation of plastic consumer products is known to accelerate weathering and facilitate the release chemicals particles into aquatic environment. However, these processes are complex. In our presented pilot study, eight were leached in distilled water under strong ultraviolet (UV) light simulating months Central European climate compared their respective dark controls (DCs). The leachates formed exploratorily characterized using a range chemical analytical tools describe degradation...
Besides the qualitative analysis of a bio-molecule or even whole proteome, their quantitative determination is also topic growing interest, since only quantity proteins changes in abundance really reflects status and biological system. Various approaches have recently been suggested for comparative investigation different sample states resulting proteomes (comparative proteomics) on basis either relative absolute protein quantification. These use molecule specific mass spectrometry stable...
Abstract. The Coastal Observing System for Northern and Arctic Seas (COSYNA) was established in order to better understand the complex interdisciplinary processes of northern seas coasts a changing environment. Particular focus is given German Bight North Sea as prime example heavily used coastal area, Svalbard an coast that under strong pressure due global change.The COSYNA automated observing modelling system designed monitor real-time conditions provide short-term forecasts, data, data...
The impact of offshore constructions on the marine environment is unknown in many aspects. application Al- and Zn-based galvanic anodes as corrosion protection results continuous emission inorganic matter (e.g. >80 kg Al-anode material per monopile foundation year) into environment. To identify tracers for emissions from wind structures, anode materials (Al-based Zn-based) were characterized their elemental isotopic composition. An acid digestion analysis method Al Zn alloys was adapted...
Substantial efforts have been undertaken to isolate and characterize plastic contaminants in different sample matrices the last years as ubiquitous presence of particulate environment has become evident. In comparison, particles 90%. a proof-of-principle setup, it was demonstrated that operating two continuous flow centrifuges sequentially at rotational speeds bears potential enable size- density-selective sampling colloidal fraction. A significant fraction spiked nanoplastic (76% ± 5% (uc))...
Rigorous carbon accounting shows that calcification-driven CO 2 emissions can exceed seagrass “Blue Carbon” storage.
Potentially hazardous particles from paints and functional coatings are an overlooked fraction of microplastic (MP) pollution since their accurate identification quantification in environmental samples remains difficult. We have applied the most relevant techniques field analysis for suitability to chemically characterize anti-corrosion containing a variety polymer binders (LDIR, Raman FTIR spectroscopy, Py-GC/MS) inorganic additives (ICP-MS/MS). present basis possible toolbox study release...
Abstract Primary production is an important driver of marine carbon storage. Besides the major nutrient elements nitrogen, phosphorus, and silicon, primary also depends on availability nutrient-type metals (e.g., Cu, Fe, Mo) absence toxicologically relevant Ni, Pb). Especially in coastal oceans, storage export to open ocean highly variable influenced by anthropogenic eutrophication pollution. To model future changes processes, a solid baseline metal concentrations crucial. The North Sea...
Magnesium (Mg) - based alloys are becoming attractive materials for medical applications as temporary bone implants support of fracture healing, e.g. a suture anchor. Due to their mechanical properties and biocompatibility, they may replace titanium or stainless-steel implants, commonly used in orthopedic field. Nevertheless, patient safety has be assured by finding long-term balance between metal degradation, osseointegration, ultrastructure adaptation element distribution organs. In order...
After World War II, large amounts of ammunition were dumped in surface waters worldwide, potentially releasing harmful and toxic compounds to the environment. To study their degradation, items Eastern Scheldt The Netherlands surfaced. Severe damage due corrosion leak paths through casings observed, making explosives accessible sea water. Using novel techniques, concentrations ammunition-related surrounding seabed seawater analyzed at 15 different locations. In direct vicinity ammunition,...
Abstract This case study of Kongsfjorden, western coastal Svalbard, provides insights on how freshwater runoff from marine‐ and land‐terminating glaciers influences the biogeochemical cycles distribution patterns carbon, nutrients, trace elements in an Arctic fjord system. We collected samples water column at stations along axis proglacial river catchments, analyzed concentrations dissolved elements, together with as well alkalinity inorganic carbon. Statistical tools were applied to...
One group of elements attracting more and attention are so-called technology-critical (TCEs). In comparison with legacy pollutants, the anthropogenic impact TCEs on environment might still be minor, but various applications introduce them to most remote places in world including marine environment. area prone pollution is Baltic Sea, partly due lack water exchange North Sea. this study, a sediment core from German Sea was used analyze total 42 elemental mass fractions. Based radiometric...
Abstract. The west Greenland shelf is a dynamic marine environment influenced by various physicochemical and biological processes. This study provides an overview of the main factors affecting distribution macronutrients, carbonate system parameters, dissolved trace elements during late summer. Key drivers include major ocean currents, melting sea ice, terrestrial freshwater runoff, each uniquely contributing to cycling spatial chemical constituents. Major such as southward-moving Baffin...