(REMPI), the system enables soft, non-fragmenting ionisation of volatile organic compounds directly from the gas phase during roasting, with a time resolution in the sub-second range. This allows the continuous [...] aroma markers such as pyrazines, furanones, and aldehydes throughout the entire roasting process. One of the main technical challenges is the development of a high-pressure-compatible sampling interface. This [...] while preventing condensation and analyte loss, ensuring reliable transfer of the process gas into the ionisation source. The acquired spectral data will be processed using multivariate statistical methods

https://www.zimmermann.chemie.uni-rostock.de/en/staff/phd-students/nahuel-di-benedetto/

e) into the vacuum of the mass spectrometer by a process called pervarporation (figure 1), losing the matrix in the process. After adsorbing and solvation, analytes are transported through the membrane [...] based on the gradient of concentration and pressure. Additionally the adsorption step results in a slight enrichment of analytes on the membrane surface. [5] Advantages are enrichment of the analytes on [...] result of the specific ionization scheme REMPI provides selective and sensitive detection of (poly)aromatic species. [3,4] A challenge for the utilization of REMPI in aquatic systems is the transfer of

https://www.zimmermann.chemie.uni-rostock.de/en/research/advanced-mass-spectrometry/membrane-introduction-mass-spectrometry/

postdoctoral researchers and assists with the organization of the Graduate Council . The aim is to create good conditions for the qualification phase and to further develop the university as an attractive place [...] Read more The Graduate Academy at the University of Rostock is the central service and coordination office for doctoral candidates and postdoctoral researchers. As a service unit within the S taff Unit [...] Diversity it supports researchers in the early stages of their careers. In collaboration with other departments within and outside the Talent Development and Diversity Office, the Graduate Academy further develops

https://www.uni-rostock.de/en/research/support-of-early-career-researchers/graduate-academy/

drivers of the Biological Carbon Pump in the Weddell Sea revealed by autonomous sampling Witt, Gesine Hochschule für Angewandte Wissenschaften Hamburg since 2022 Recording the baseline before the change: [...] instability in the Indian Sector of the Southern Ocean (Acronym: MarEASI) Grayver, Alexander University of Cologne since 2024 Geophysical characterization of the crust and subglacial sediments near the grounding [...] Cercozoa shape the community composition of cryptogamic covers, the dominant vegetation in Polar Regions. Förster, Charlotte Julius-Maximilians-Universität Würzburg since 2020 Understanding the mechanistic

https://www.spp-antarktisforschung.uni-rostock.de/en/research/projects/current-projects/

from borrowing for one of the following reasons. Durations vary according to the reason for the restriction. Outstanding fines Should the sum of your outstanding fines exceed the maximum amount allowed, [...] or stolen. Whilst the lock is in place, you cannot borrow any resources or access your user account. The account is unlocked once the missing card is found or you have completed the replacement process [...] person. The letter will contain the banking details needed to make payment. Fourth Reminder Should you have received 4 reminders for an item, you can no longer renew any loans. Please return the item as

https://www.ub.uni-rostock.de/en/borrowing/user-account/account-locked/

Project Description Diatoms are the dominant primary producers, the main suppliers for food webs as well as the main drivers of the biological silicate and carbon pumps of the Southern Ocean (SO). Especially [...] shelled species, as exemplified by the well studied Fragilariopsis kerguelensis, have contributed disproportionately to making the SO one of the main silica sinking regions in the Quaternary World ocean. We argue [...] organisms, but it is also critical in the context of global environmental change where one of our largest knowledge gaps in the marine realm currently concerns adaptability in the field. DFG Programme: Infrastructure

https://www.spp-antarktisforschung.uni-rostock.de/en/research/projects/current-projects/biological-sciences/beszteri-2016/

in remote areas such as the Southern Ocean. To compare the exposure to plastics among petrels sampled at different Antarctic and subantarctic sites and times of the season, the presence of three common [...] will be determined in the waxy preen oil using a recently established GC-MS protocol. In addition, mercury will be measured from the same birds using feather samples which integrate the exposure to mercury [...] further compare samples collected during the early and late Antarctic breeding season (e.g. November versus March) to quantify carry-over effects of the exposure in the inter-breeding season. DFG Programme:

https://www.spp-antarktisforschung.uni-rostock.de/en/research/projects/current-projects/biological-sciences/quillfeldt-2017/

in polar regions. Through the chemical analysis of the exchanged or released substances, we provide information on the ecological functioning of microalgae. This includes the qualitative and quantitative [...] Research Fellow at the University of New South Wales, Australia 2002-2007 Junior Professor at the Institute of Chemistry and Biology of the Marine Environment, Oldenburg 1997-2002 Postdoc at the Hong Kong University [...] Professor Tilmann Harder As a marine chemist and chemical ecologist at the University of Bremen and at the Alfred Wegener Institute for Polar and Marine Research I am interested in chemically mediated

https://www.spp-antarktisforschung.uni-rostock.de/en/about-us/coordination/physics-chemistry/