A5050650931- Analytical Chemistry and Chromatography
- Mass Spectrometry Techniques and Applications
- Cultural Heritage Materials Analysis
- Analytical chemistry methods development
- Microfluidic and Capillary Electrophoresis Applications
- Pharmaceutical and Antibiotic Environmental Impacts
- Dyeing and Modifying Textile Fibers
- Chemical Synthesis and Reactions
- Phytochemicals and Antioxidant Activities
- Chromatography in Natural Products
- Dye analysis and toxicity
- Trace Elements in Health
- Biochemical and Molecular Research
- Biological Stains and Phytochemicals
- Synthesis and Reactivity of Sulfur-Containing Compounds
- Mercury impact and mitigation studies
- Selenium in Biological Systems
- Conservation Techniques and Studies
- Antibiotics Pharmacokinetics and Efficacy
- Pigment Synthesis and Properties
- Sulfur-Based Synthesis Techniques
- Building materials and conservation
- Organophosphorus compounds synthesis
- Microwave-Assisted Synthesis and Applications
- Adenosine and Purinergic Signaling
Gdańsk University of Technology
2015-2024
University of Gdańsk
1998-2016
Centre National de la Recherche Scientifique
2003-2004
Abstract Functional antibacterial textile materials are in great demand the medical sector. In this paper, we propose a facile, eco-friendly approach to design of biodegradable cotton fabrics. Cotton fiber fabrics were enhanced with chitosan coating loaded plant extracts and essential oils. We employed Fourier-transform infrared (FTIR) X-ray photoelectron spectroscopy (XPS), UV–Vis spectrophotometry, optical microscopy, scanning electron microscopy (SEM), thermogravimetric analysis (TGA)...
The identification and determination of transformation products (TPs) pharmaceuticals is essential nowadays, in order to track their fate the aqueous environment and, thus, estimate actual pollution. However, this a challenging task due necessity apply high-resolution instruments enable detect known unknown compounds. This work presents use liquid chromatography quadrupole time-of-flight mass spectrometry (LC-QTOF-MS) as powerful tool for three selected pharmaceuticals, furosemide (FUR),...
The mechanisms of retro-Diels-Alder fragmentation luteolin are studied theoretically using the Density Functional Theory method (B3LYP hybrid functional) together with 6-311++G(d,p) basis set and supported by electrospray ionization tandem mass spectrometry (ESI-MS) results. reaction paths leading to formation 1,3A- 1,3B- fragment ions observed as main spectral features in ESI-MS spectrum described discussed, including structures transition states intermediate products. heights activation...
A multi-tool analytical practice was used for the characterisation of a 16th century carpet manufactured in Cairo. mild extraction method with hydrofluoric acid has been evaluated order to isolate intact flavonoids and their glycosides, anthraquinones, tannins, indigoids from fibre samples. High-performance liquid chromatography coupled spectroscopic mass spectrometric detectors identification possible marker compounds special attention paid natural dyes present historical Weld, young...
A systematic approach to the characterization of selenized yeast supplements in terms speciation selenium was developed. The optimized fractionation procedures included sequential leaching water soluble, cell-wall bound, and membrane-protein followed by a further each extract high-resolution size-exclusion chromatography. stability fractions collected as chromatographic peaks investigated presence proteolytic enzyme (pronase XIV) trypsin order discriminate between selenium-containing...
Natural dyes were extracted from various plant sources and converted into lake pigments based on aluminum tin. Three different plants (weld, Persian berries, Brazilwood) chosen as representative of natural dyes. High-performance liquid chromatography (HPLC) triple-quadrupole mass spectrometry (QqQ MS) used to identify dyestuffs in the raw extracts. The further characterized by optical scanning electron microscopy (SEM), UV-Vis spectrophotometry, thermogravimetric analysis (TGA)....
Starting from the sampling up to time of analysis, content water sample can be altered due chemical, physical, and biological reactions it undergoes. This article deals with processes occurring in samples during their storage reasons occurrence. Special attention has been paid chemical physicochemical as well microbiological photochemical degradation component sample. Techniques for preservation are also reviewed.
Due to growing restrictions on the use of halogenated flame retardant compounds, there is great research interest in development fillers that do not emit toxic compounds during thermal decomposition. Polymeric composite materials with reduced flammability are increasingly demand. Here, we demonstrate unmodified graphene and carbon nanotubes as well basalt fibers or flakes can act effective retardants polymer composites. We also investigate effects mixtures these mineral thermal, mechanical,...
Experimental studies were conducted to investigate the photodegradation of diazepam and sertraline, two most frequently used psychiatric drugs, induced by xenon lamp irradiation, which overlap sunlight spectra, natural sunlight. Degradation kinetics was established indicating occurrence autocatalytic reactions. The application liquid chromatography coupled quadrupole time-of-flight mass spectrometry allowed for accurate measurements proper fragmentation target compounds enabling structure...
Nowadays, monitoring focuses on the primary compounds and does not include degradation products formed during various biological chemical processes. Transformation may have same effects to human health environment or sometimes they can be more toxic than parent compound. Unfortunately, knowledge about formation of is still limited, however, very important for environmental risk assessment. Firstly, photodegradation kinetic amlodipine was investigated in two experimental conditions: exposure...
Abstract Calixarenes are a class of host molecules with three-dimensional cavity capable accepting guest molecules. The interest calixarenes in analytical and separation chemistry has increased recent years because their ability to form reversible complexes both neutral charged have been utilized gas chromatography, solid-phase extraction, capillary electrophoresis overall high performance liquid chromatography. This short review is focused on advances synthesis characterization calixarene,...
We present here the advances achieved in development of new sulfamoylated 4-(1-phenyl-1H-1,2,3-triazol-4-yl)phenol derivatives as potent steroid sulfatase (STS) inhibitors for treatment breast cancer. Prompted by promising biological results and silico analysis, initial series similar compounds were extended, appending a variety m-substituents at outer phenyl ring. The inhibition profiles newly synthesized evaluated using radioisotope enzymatic assay and, together with preceding reported...
A series of polycyclic aromatic hydrocarbons (PAHs) different size and shape has been used to characterize the chromatographic behavior five calix[4]arene stationary phases in 1,3-alternate conformation synthesized our laboratory. The selection linear, four-ring nonlinear, five-ring PAHs gave data on selectivity changes across range columns. Retention 12 solutes evaluated at various methanol contents mobile phase (70–100% v/v) column temperatures (20–45°C). thermodynamic parameters...
An analytical protocol for identification of dyes using reversed phase liquid chromatography-mass spectrometry with atmospheric pressure electrospray ionization (LC-ESI/MS) is presented.
This paper presents a comprehensive analysis of artistic paints produced in the 19<sup>th</sup>century by French art materials supplier Richard Ainès.
Abstract Four novel 1,3‐ alternate calix[4]arene‐bonded silica gel stationary phases possessing different aromatic and aliphatic substituents at the upper rim (CalixNph, CalixBph, CalixHex, CalixDdc) were prepared structurally characterized. The comparison selectivity of these done by using alkylbenzenes, fatty acid p ‐bromophenacyl esters, positional isomers, polynuclear hydrocarbons as analytes. Quantum chemistry calculations have also been performed (using an ab initio method) to support...
This paper presents the energy characteristics of wood and wood-based materials in form commercially available pellets, furniture board (MDF) OSB. Toxicometric indices were determined for gaseous destructs arising from thermal decomposition combustion studied. The proves that conditions are crucial terms toxic destructive emissions. It has been shown under controlled can lead to equally low emissions wastes as traditional materials. also index greenhouse gas emission, so-called CO2...