Biography:

In the past H. Jungnickel has collaborated on articles with B. Cliff. One of their most recent publications is Time-of-flight secondary ion mass spectrometry (ToF-SIMS)-based analysis and imaging of polyethylene microplastics formation during sea surf simulation. Which was published in journal Science of The Total Environment.

More information about H. Jungnickel research including statistics on their citations can be found on their Copernicus Academic profile page.

H. Jungnickel's Articles: (2)

Time-of-flight secondary ion mass spectrometry (ToF-SIMS)-based analysis and imaging of polyethylene microplastics formation during sea surf simulation

Highlights•Pre-production microplastic pellets were used to evaluate the methodology•Secondary microplastic < than 10 μm can be detected directly in sea sand•Surface Ions of microplastic particles were used to identify them in sea sand matrix•Chemical images gave size distribution patterns of microplastic particles in matrix•Larger microplastic particles were exposed to a sea surf simulation•Particle number (< 10 μm) increased from 14 to 31 d exposure

Detection of chlorinated pesticides on the surface of fungus using ToF-SIMS

AbstractChlorinated organic compounds are commonly used as pesticides (e.g. Lindane or DDT); unfortunately these compounds have the ability to be concentrated in aquatic and terrestrial food chains causing environmental problems due to their toxicity. Therefore there is a need for their removal using wastewater treatment plants. It is known that these pollutants adsorb on to the surface of the fungi Rhizopus arrizus from a water solution. However the actual mode of biosorption is unknown.We aim to investigate this interaction further using time-of-flight (ToF)-SIMS. Samples of fungus were grown in aqueous solutions containing Lindane then freeze-dried, the presence of Lindane was independently quantified by a gas chromatography-electron capture detector technique. The samples were then subjected to ToF-SIMS analysis. Evidence for Lindane was seen on the surface of the fungus, however it became apparent that the Lindane was too volatile for such an analysis. This rapid deterioration of signal is preventing a more in depth study of the interaction between Lindane and R. arrhizus. However it is anticipated that by utilising a frozen-hydrated sample preparation technique, of a type currently being developed at UMIST, that these challenges would be overcome.

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