A5102979028- Analytical chemistry methods development
- Electrochemical Analysis and Applications
- Mercury impact and mitigation studies
- Alkaloids: synthesis and pharmacology
- Advanced Chemical Sensor Technologies
- Selenium in Biological Systems
- Arsenic contamination and mitigation
- Gas Sensing Nanomaterials and Sensors
- Radioactive element chemistry and processing
- Berberine and alkaloids research
- Plant-based Medicinal Research
- Plant Toxicity and Pharmacological Properties
- Heavy metals in environment
- Atomic and Subatomic Physics Research
- Papaya Research and Applications
- Cultural Heritage Materials Analysis
- Building materials and conservation
- Organoselenium and organotellurium chemistry
- Mine drainage and remediation techniques
- Phenothiazines and Benzothiazines Synthesis and Activities
- Phytochemistry Medicinal Plant Applications
- Catalytic Processes in Materials Science
- Plant Stress Responses and Tolerance
- Pesticide Residue Analysis and Safety
- Herbal Medicine Research Studies
Charles University
2012-2023
Universität Hamburg
2012
UV-photochemical generation of cadmium volatile species was carried out from formic acid medium containing ferrous ions resulting in improved reproducibility.
Salt stress is one of the most damaging plant stressors, whereas hypoosmotic not considered to be a dangerous type in plants and has been less extensively studied. This study was performed compare metabolism cucumber grown soil with transferred distilled water 100 mM NaCl solution. Even though caused by did cause such significant changes relative content, Na+/K+ ratio Rubisco content as those salt stress, it accompanied more pronounced specific activities NADP-dependent enzymes. After 3...
UV-photochemical vapour generation followed by <italic>in situ</italic> trapping and atomization of the generated volatile compounds in graphite furnace atomizer an atomic absorption spectrometer (GF-AAS) was employed to determine selenium sub-ppb range.
An ultraviolet-photochemical generator (UV-PVG) capable of post-column on-line transformation both organic and inorganic mercury species to cold vapor (Hg0) with subsequent detection by quartz tube-atomic absorption spectrometry (QT-AAS) was developed. Mercury(II), methylmercury(I), ethylmercury(I), phenylmercury(I) were successfully detected after separation reversed-phase high-performance liquid chromatography (RP-HPLC). Two types AAS detectors compared. The first a commonly used...
We present a comparison of interference in three methods generation volatile Se species to compare their performance with regard matrix effects.
Fifteen electrolytic flow-through cells belonging to three different design groups (non-membrane, thin-layer and tubular) have been constructed characterized in this work. Atomic absorption spectrometry with a quartz tube atomizer has employed as detector Se chosen model analyte. At first optimization of relevant working parameters was performed basic analytical characteristics were evaluated under the optimum experimental conditions for all cells. Mutual comparisons thereafter 5 best...
Abstract Sixteen specimens of historical remains inorganic pharmaceuticals dating back to the eighteenth century were analyzed by a combination spectroscopy (ICP–MS, atomic absorption/emission, UV–Vis, infrared and Raman), capillary zone electrophoresis, chemical methods (titration gravimetric analysis). The results obtained confirmed identity 14 analyzed. With exception one, impurities found in all specimens, often at relatively high concentrations. Based on these impurities, it was...
Abstract The construction and optimization of five new types miniaturized flow-through electrolytic cells with lead cathode platinum anode for electrochemical hydride generation in atomic absorption spectrometry (HG-QFAAS) were achieved during this research study. ion-exchange membrane was not part these only one carrying electrolyte both electrode chambers used. Hydride efficiency either comparable or higher than the recorded classic thin-layer cell. inner volume chamber reduced to a...
Nowadays, several amalgam-based electrodes are commonly used in electrochemistry as a less toxic alternative to mercury electrodes. Therefore, comparison of the vapor pressure silver electrode materials with liquid and dental amalgam using AAS was done this study. Method optimized get highest signal. Results showed that not containing is far lower than (about two orders signal magnitude) comparable amalgam.
To test the hypothesis that Hypotension probability indicator (HPI) driven hemodynamic protocol use may decrease exposition to hypotension (mean arterial pressure below 65 mmHg) during supratentorial intracranial procedures.Patients undergoing tumor resection under general anesthesia (ASA 1-3) were included into this randomized single center-controlled pilot trial. Patients in control group (COV, N.=20) managed based on institutional standard avoid hypotension. intervention (INT, using a...