A5074218030- Analytical chemistry methods development
- Mass Spectrometry Techniques and Applications
- Advanced Chemical Sensor Technologies
- Analytical Chemistry and Chromatography
- Electrochemical Analysis and Applications
- Analytical Chemistry and Sensors
- Bacterial biofilms and quorum sensing
- Toxic Organic Pollutants Impact
- Intensive Care Unit Cognitive Disorders
- Advanced oxidation water treatment
- Water Treatment and Disinfection
- Catalytic Processes in Materials Science
- Pharmaceutical and Antibiotic Environmental Impacts
- Pesticide Residue Analysis and Safety
- Bacterial Identification and Susceptibility Testing
- Microplastics and Plastic Pollution
- Antibiotic Resistance in Bacteria
- Aluminum toxicity and tolerance in plants and animals
- Nuclear Physics and Applications
- Essential Oils and Antimicrobial Activity
- Ion-surface interactions and analysis
- Electrochemical sensors and biosensors
- Environmental remediation with nanomaterials
- Probiotics and Fermented Foods
- Magnesium in Health and Disease
University of Duisburg-Essen
2016-2025
IWW Water Centre
2013-2024
Hochschule Bonn-Rhein-Sieg
2023
Essen University Hospital
2015-2016
The use of fluid-warming systems is recommended for infusion rates > 500 ml.h-1 to avoid peri-operative hypothermia. Some devices disposable aluminium-heated plates heat transfer, but there no protective coating separate the fluid from heated aluminium surface. It unknown if this could promote release into fluids. We investigated a coated (Fluido compact) and an uncoated (enFlow) device using normal saline or balanced electrolyte solution as fluids, pumped through disposables at flow 2, 4 8...
This work presents a strategy to correlate the results from gas chromatography coupled ion mobility spectrometry (GCxIMS) and mass (GC-MS) enable simpler cheaper analysis of flavor compounds in e-liquids. The use retention index for GCxIMS measurements was validated its application with GC-MS data. easy detection substances at concentrations as low 1 μg/L can therefore be combined identification power MS. MS' signals wide-spread availability spectra libraries reduces effort necessary choose...
A low-temperature plasma (LTP) was used as an ionization source for differential ion mobility spectrometry (DMS) the first time. This enhances potential of DMS a miniaturized system on-site rapid monitoring. The effects experimental parameters (e.g., discharge/carrier gas composition and flow rate, applied voltage) on analysis model aromatic compounds were investigated discussed. It found that nature reactant positive (RIP) is dependent composition. best response to analyte achieved when...
Abstract Ion mobility spectrometry with corona discharge ion source was used for the measurements of selected pesticides cybutryne, terbutryn, dichlorvos, and quinoxyfen in water. The analyses were carried out by (i) direct injection aqueous solution (ii) extraction using solid phase microextraction commercial SPME arrows. instrumental experimental parameters including drift tube temperature, port fiber type studied optimized to achieve maximum signal intensity. limit detections obtained...
Exhaled breath analysis is evolving into an increasingly important non-invasive diagnostic tool. Volatile organic compounds (VOCs) in contain information about health status and are promising biomarkers for several diseases, including respiratory infections caused by bacteria. To monitor the composition of VOCs or emission from bacteria, sensitive analytical techniques required. Next to mass spectrometry, ion mobility spectrometry (IMS) considered a tool detecting gaseous analytes parts per...
Abstract Cystic fibrosis (CF) is an autosomal recessive inherited disease which leads to a production of thickened mucus in the airways. These conditions are conducive poly-microbial infections, like chronic lung infection, Pseudomonas aeruginosa ( P. ) major pathogenic bacterium colonizing CF lungs at end lifetime patients. This vitro study uses biofilm model under partly cystic conditions, with sampling volatile extracellular metabolites. The gas was done thin-film microextraction (TFME)...
Objectives: The detection of microbial volatile organic compounds or host response markers in the exhaled gas could give an earlier diagnosis ventilator-associated pneumonia. Gas chromatography-ion mobility spectrometry enables noninvasive, rapid, and sensitive analysis gas. Using a rabbit model pneumonia we determined if is able to detect 1) specific changes 2) bacterial species-specific Design: Experimental vivo study. Setting: University research laboratory. Subjects: Female New Zealand...