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Search results for: ORGANOMETALLIC CHEMISTRY
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A comparison of three solvent-free techniques coupled with gas chromatography for determining trihalomethanes in urine samples
PublicationDążenie do oznaczania lotnych analitów organicznych w próbkach płynów biologicznych charakteryzujących się złożonym, a często zmiennym składem matrycy, stanowi siłę napędową do działań analityków w zakresie poszukiwania nowych rozwiązań metodycznych i aparaturowych. Publikacja ta przedstawia porównanie trzech technik zastosowanych do tych celów: technikę analizy fazy nadpowierzchniowej z generacją strumienia ciekłego sorbentu...
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A simple access to o-acyl bicyne
PublicationW publikacji przedstawiono prostą metodę otrzymywania o-acylowych pochodnych bicyny. Substratem do syntezy była n,n-bis(2-hydroksyetylo)glicyna - bicyna. Bicynę najpierw przeprowadzano w ester benzylowy w reakcji z alkoholem benzylowym i kwasem p-toluenosulfonowym w temp. 75 st. C. Tak otrzymany związek, acylowano kwasami organicznymi w obecności DCC ( dicyklokeksylokarbodiimid)i DMAP (dimetyloaminopirydyna), otrzymując o-acylowe...
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Determination of tributylotin (TBT) in marine sediment using pressurised liquid extraction-gas chromatography-isotope dilution mass spectrometry (PLE-GC-IDMS) with a hexane-tropolone mixture
PublicationOpracowano metodę oznaczania zawartości tributylocyny w próbkach osadu morskiego. Na etapie izolacji zastosowano technikę przyspieszonej ekstrakcji za pomocą roztworu tropolonu w heksanie.Na etapie oznaczeń końcowych wykorzystano technikę chromatografii gazowej, stosując metodę spektrometrii mas rozcieńczenia izotopowego. Wyznaczono parametry walidacyjne opracowanej metody: granicę wykrywalności, precyzję, poprawność i niepewność.
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Solid phase microextraction combined with chromatography - a powerful tool for determination of warfare agents and related compounds
PublicationOpisano zastosowanie mikroekstrakcji do fazy stacjonarnej do izolacji wzbogacania środków bojowych i produktów ich degradacji w powietrzu, wodzie i glebie oraz próbkach bilogicznych. Na etapie oznaczeń końcowych stosuje się najczęściej chromatografię gazową. Anality można pobierać przez bezpośrednie zanurzenie włókna w próbce ciekłej i gazowej oraz w fazie nadpowierzchniowej. Stosując SPME-GC można osiągnąć niskie granice oznaczalności...
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A comparison of tribological properties of nanolubricants containing carbon nanotori and additional additives
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Central Metal Determines Pharmacokinetics of Chlorophyll-Derived Xenobiotics
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Electrochemical and biological characterization of lyotropic liquid crystalline phases – retardation of drug release from hexagonal mesophases
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Spectral Characteristic and Preliminary Anticancer Activity in vitro of Selected Rhodanine‐3‐carboxylic Acids Derivatives
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Mechanistic studies of the hydrolysis of p-nitrophenyl sulfate catalyzed by arylsulfatase from Helix pomatia
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Facile synthesis of porous iron oxide/graphene hybrid nanocomposites and potential application in electrochemical energy storage
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The in situ construction of three-dimensional core–shell-structured TiO2@PPy/rGO nanocomposites for improved supercapacitor electrode performance
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One-pot synthesis of core/shell Co@C spheres by catalytic carbonization of mixed plastics and their application in the photo-degradation of Congo red
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One-pot self-assembly of three-dimensional graphene macroassemblies with porous core and layered shell
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Electrochemical Characteristics of Discrete, Uniform, and Monodispersed Hollow Mesoporous Carbon Spheres in Double‐Layered Supercapacitors
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Insight into the Effect of ZIF‐8 Particle Size on the Performance in Nanocarbon‐Based Supercapacitors
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Carbon‐Nanotube‐Based Stimuli‐Responsive Controlled‐Release System
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Multifunctional nitrogen-doped nanoporous carbons derived from metal–organic frameworks for efficient CO2 storage and high-performance lithium-ion batteries
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New insights into the role of lattice oxygen in the catalytic carbonization of polypropylene into high value-added carbon nanomaterials
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Graphene-based materials for capacitive deionization
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Striking influence of Fe2O3 on the “catalytic carbonization” of chlorinated poly(vinyl chloride) into carbon microspheres with high performance in the photo-degradation of Congo red
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Thermodynamic properties and phase stability of wadsleyite II
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Structure of single KL0–, double KL1–, and triple KL2 − ionization in Mg, Al, and Si targets induced by photons, and their absorption spectra
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Converting real-world mixed waste plastics into porous carbon nanosheets with excellent performance in the adsorption of an organic dye from wastewater
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Correction to Aromatic Dendrimers Bearing 2,4,6-Triphenyl-1,3,5-triazine Cores and Their Photocatalytic Performance
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Consequences of cathepsin C inactivation for membrane exposure of proteinase 3, the target antigen in autoimmune vasculitis
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Lung Protection by Cathepsin C Inhibition: A New Hope for COVID-19 and ARDS?
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Supramolecular Interactions between β-Cyclodextrin and the Nucleobase Derivatives of Ferrocene
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Neutrophilic Cathepsin C Is Maturated by a Multistep Proteolytic Process and Secreted by Activated Cells during Inflammatory Lung Diseases
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Aromatic Dendrimers Bearing 2,4,6-Triphenyl-1,3,5-triazine Cores and Their Photocatalytic Performance
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Exploiting the S4–S5 Specificity of Human Neutrophil Proteinase 3 to Improve the Potency of Peptidyl Di(chlorophenyl)-phosphonate Ester Inhibitors: A Kinetic and Molecular Modeling Analysis
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Nanoconjugates of graphene oxide derivatives and meso-tetraphenylporphyrin: a new avenue for anticancer photodynamic therapies – Cell-on-a-Chip analysis
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How insignificant modifications of photocatalysts can significantly change their photocatalytic activity
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Peptomeric analogues of trypsin inhibitor SFTI-1 isolated from sunflower seeds
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New Selective Peptidyl Di(chlorophenyl) Phosphonate Esters for Visualizing and Blocking Neutrophil Proteinase 3 in Human Diseases
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Substrate specificity and inhibitory study of human airway trypsin-like protease
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Introduction of non-natural amino acid residues into the substrate-specific P1 position of trypsin inhibitor SFTI-1 yields potent chymotrypsin and cathepsin G inhibitors
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The LA Loop as an Important Regulatory Element of the HtrA (DegP) Protease from Escherichia coli
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New potent cathepsin G phosphonate inhibitors
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Fragrant starch-based films with limonene
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Fabrication of a Molecularly Imprinted Polymer Adsorbent for Pipette Tip Micro Solid-phase Extraction of Levofloxacin from Aqueous Samples Prior to its Spectrophotometric Determination
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Preparation and characterization of collagen/chitosan/hyaluronic acid thin films for application in hair care cosmetics
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Comparison of effect of fungicides with fenpropidin and picoxystrobin on phosphatase activities in soil
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The modulatory effect of green tea catechin on drug resistance in human ovarian cancer cells
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How to decrease pharmaceuticals in the environment? A review
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The Extracellular Bacterial HtrA Proteins as Potential Therapeutic Targets and Vaccine Candidates
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A new approach for the extraction of tetracyclines from soil matrices: application of the microwave-extraction technique
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Ionic liquids for the passive sampling of sulfonamides from water—applicability and selectivity study
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Preliminary study on suitability of ionic liquids as potential passive-sampling media of polyaromatic-hydrocarbon (PAH) analyses in water
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Current Issues in Pharmaceutical Residues in Drinking Water
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Analytical Techniques for Determining Pharmaceutical Residues in Drinking Water – State of Art and Future Prospects
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