Search results for: supported liquid membrane

Przedstawiono wyniki badań wpływu umiarkowanych i wysokich wilgotności powietrza na sygnał, czułość i czas odpowiedzi prototypowego czujnika ditlenku siarki ze złotą elektrodą pracującą, próżniowo napyloną na powierzchnię membrany nafionowej. Zaprezentowano także wyniki badań impedancyjnych w zakresie potencjałów, w którym mechanizm utleniania ditlenku siarki jest kontrolowany aktywacyjnie i dyfuzyjnie. Parametry odpowiadające...

Wyznaczanie współczynników dyfuzji tlenku węgla (IV) przez membrany wysycone cieczą jonową = Determination of carbon dioxide diffusion coefficients in supported ionic liquids membranes

Publication

- Przemysł Chemiczny - Year 2010

Wykazano możliwość zastosowania imidazoliowych cieczy jonowych osadzonych na nośnikach polimerowych SILM (supported ionic liquids membranes) do absorpcji CO2. W badaniach wykorzystano sole imidazoliowe posiadające w strukturze aniony fluoroalkilowe typu [Tf2N] i [TfO], które selektywnie separują tlenek węgla (IV). Wyznaczono współczynniki dyfuzji CO2 przez poszczególne SILM na podstawie ilości dyfundującego CO2 przez powierzchnię...

Signal Processing in the Investigation of Two-phase Liquid-gas Flow by Gamma-ray Absorption

Publication

R. Hanus
M. Zych
M. Jaszczur
A. Szlachta
A. Golijanek-Jędrzejczyk

- Year 2019

n this paper, the use of the gamma-absorption method applied in the investigation of the two-phase liquid-gas flow in the pipeline is described. An example of its application to the air transported by water in a horizontal pipeline is evaluated. In the measurements, Am-241 radioactive sources and probes with Nal (Tl) scintillation crystals have been used. The signals from the radiometric set were used to determine the velocity...

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Influence of temperature and nitrogen pressure on the test without active gases for high-temperature proton exchange membrane fuel cells

Publication

W. Rosiński
A. Wilk
C. Turpin

- Archives of Electrical Engineering - Year 2023

High-Temperature Proton-Exchange Membrane Fuel Cells (HT-PEMFCs) are a candidate for electrical energy supply devices in more and more applications. Most notably in the aeronautic industry. Before any use, an HT-PEMFC is preheated and after that supplied with its active gases. Only at this state, the diagnostics can be performed. A method of testing not requiring a complete start-up would be beneficial for many reasons. This article...

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Optimization of liquid chromatographic separation of pharmaceuticals within green analytical chemistry framework

Publication

A. Dogan
M. Tobiszewski

- MICROCHEMICAL JOURNAL - Year 2020

The contribution is aimed at the development of methodology that allows to consider green analytical chemistry criteria during optimization of liquid chromatographic separation with design of experiment. The objectives of the optimization are maximization of peak areas of five non-steroid anti-inflammatory drugs, maximization of resolution between peaks, with simultaneous shortening of chromatographic separation time and minimization...

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The impedance of hydrogen oxidation reaction in a proton exchange membrane fuel cell in the presence of carbon monoxide in hydrogen stream

Publication

- APPLIED ENERGY - Year 2020

Evaluation of performance of a proton exchange membrane fuel cell, which is affected by carbon monoxide that pollutes the hydrogen stream, was presented. This influence was studied for carbon monoxide concentration of 125–325 ppb, which are close to values specified in ISO 14687:2019 standard. Performed studies provided crucial information for further development of fuel cell as an energy source for automotive application. Impedance...

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Determination of Pesticide Residues in Honeybees using Modified QUEChERS Sample Work-Up and Liquid Chromatography-Tandem Mass Spectrometry

Publication

- MOLECULES - Year 2014

Increasing emissions of chemical compounds to the environment, especially of pesticides, is one of factors that may explain present honeybee colony losses. In this work, an analytical method employing liquid chromatography-tandem mass spectrometry (LC-MS/MS) was optimized for the simultaneous screening of 19 pesticides which have not been yet determined in honeybee samples from northern Poland (Pomerania). The sample preparation,...

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Fuzzy logic-supported building design for low-energy consumption in urban environments

Publication

M. Arun
C. Efremov
V. B. Nguyen
D. Barik
P. Sharma
B. J. Bora
J. Kowalski
H. C. Le
T. H. Truong
D. N. Cao

- Case Studies in Thermal Engineering - Year 2024

Climate, building materials, occupancy patterns, and HVAC (heating, ventilation, and air conditioning) systems all interact in complex ways, making it difficult to design low-energy buildings. Thus, innovative architectural and engineering design strategies are required to meet the worldwide need to decrease building energy usage. To improve the calculation of energy consumption of buildings, this work introduces the FCR-BCS (fuzzy...

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Detoxification of parabens using UV-A enhanced by noble metals—TiO2 supported catalysts

Publication

J. Gomes
I. Leal
K. Bednarczyk
M. Gmurek
M. Stelmachowski
A. Zaleska-Medynska
M. Quinta-Ferreira
R. Costa
R. Quinta-Ferreira
R. Martins

- Journal of Environmental Chemical Engineering - Year 2017

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Pd supported ordered mesoporous hollow carbon spheres (OMHCS) for hydrogen storage

Publication

B. Zielinska
B. Michalkiewicz
X. Chen
E. Mijowska
R. Kalenczuk

- Chemical Physics Letters - Year 2016

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Properties of PEEK-supported films of biological substances prepared by the Langmuir-Blodgett technique

Publication

M. Jurak
A. Wiącek
K. Terpiłowski

- Colloids and Surfaces A: Physicochemical and Engineering Aspects - Year 2016

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The quality management in precast concrete production and delivery processes supported by association analysis

Publication

A. Nicał
H. Anysz
H. Anysz

- International Journal of Environmental Science and Technology - Year 2020

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Ontology supported selection of versions for N-version programming in semantic web services

Publication

P. Kaczmarek

- Year 2008

Binocular Vision Impairments Therapy Supported By Contactless Eye-gaze Tracking System

Publication

- LECTURE NOTES IN COMPUTER SCIENCE - Year 2010

Binocular vision impairments often result in partial or total loss of stereoscopic vision. The lack of binocular vision is a serious vision impairment that deserves more attention. Very important result of the binocular vision impairments is a binocular depth perception. This paper describes also a concept of a measurement and therapy system for the binocular vision impairments by using eye-gaze tracking system.

Phosphanylphosphido and phosphanylphosphinidene complexes of zirconium(IV) supported by bidentate N,N ligands

Publication

- POLYHEDRON - Year 2017

Phosphanylphosphido complexes of zirconium, [NacNacZrCl2(η2-R2P–PSiMe3)] (R = t-Bu, i-Pr), were synthesized in the reaction of R2P–P(SiMe3)Li·nTHF (R = t-Bu, i-Pr) with a β-diketiminate complex, [NacNacZrCl3], in toluene. Elimination of Me3SiCl from [NacNacZrCl2(η2-R2P–PSiMe3)] provided the phosphanylphosphinidene complexes [NacNacZrCl(η2-R2P–P)] (R = t-Bu, i-Pr). Moreover, the reaction of [NacNacZrCl2(η2-R2P–PSiMe3)] with R2P–P(SiMe3)Li·nTHF...

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ICT-supported spatial identification of natural and cultural values as a tool in development policies

Publication

- Year 2011

W ciagu ostatnich dwudziestu lat świat stał się miejscem gwałtownego postępu technologicznego, mentalnego i społecznego. Przesył danych geoprzestrzennych staje się coraz łatwiejszy a dostęp coraz bardziej powszechny. Stwarza to nowe możliwości konstruowania polityk rozwoju.Artykuł przedstawia kwestie wykorzystania technologii teleinformatycznych w prowadzeniu polityki rozwoju - na przykładzie przetwarzania danych o środowisku przyrodniczym...

Nanocomposite nickel ceria cermet with low nickel content for anode-supported SOFCs

Publication

P. Jasiński
T. Suzuki
V. Petrovsky
H. U. Anderson

- Year 2005

W pracy przedstawiono badania nanokompozytowego cermetu z zawartościa niklu 7.5, 11, 14% niklu w cermecie. Cermet przygotowno z wykorzystanim technologii net shape.

DISPERSIVE LIQUID-LIQUID MICROEXTRACTION COUPLED WITH MICRO-VOLUME SPECTROPHOTOMETRY FOR DETERMINATION OF TOTAL IODINE IN URINE SAMPLES

Publication

M. Kaykhaei
M. Kaykhaii
M. Hashemi
M. Sargazi

- JOURNAL OF THE CHILEAN CHEMICAL SOCIETY - Year 2018

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Application of multicriteria decision analysis in solvent type optimization for chlorophenols determination with a dispersive liquid–liquid microextraction

Publication

- JOURNAL OF CHROMATOGRAPHY A - Year 2016

This study presents a novel support tool for the optimization and development of analytical methods. The tool is based on multi-criteria decision analysis (MCDA), namely the Technique for Order of Preference by Similarity to the Ideal Solution (TOPSIS), that allows users to rank possible solutions according to their requirements. In this study, we performed rankings of pairs of eight extraction and three dispersive solvents used...

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Characteristics of La0.8Sr0.2Ga0.8Mg0.2O3-delta -supported micro-tubular solid oxide fuel cells with bi-layer and tri-layer electrolytes

Publication

Y. Liu
S. Wang
Y. Hsu
P. Jasiński

- JOURNAL OF THE CERAMIC SOCIETY OF JAPAN - Year 2017

In this study, La0.8Sr0.2Ga0.8Mg0.2O3−δ (LSGM)-supported micro tubular solid oxide fuel cells (T-SOFCs) with two different configurations, one containing an LSGM–Ce0.6La0.4O2−δ (LDC) bi-layer electrolyte (Cell A) and one containing an LDC–LSGM–LDC tri-layer electrolyte (Cell B), were fabricated using extrusion and dip-coating. After optimizing the paste formulation for extrusion, the flexural strength of the dense and uniform LSGM...

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Comparison of High Performance Liquid Chromatography Methods with Different Detectors for Determination of Steroid Hormones in Aqueous Matrices

Publication

- ANALYTICAL LETTERS - Year 2014

This paper presents the development and comparison of procedures for the qualitative and quantitative determination of five estrogenic compounds (17-a-ethynylestradiol, estrone, estradiol, estriol, and progesterone) in drinking water and wastewater samples. Five extraction columns and two disks were tested for their efficiency. The C18 columns were superior on the basis of cost for solid phase extraction of drinking water or sewage....

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Facile synthesis and characterization of graphene and N-doped graphene by CVD method from liquid precursors for promising electrode materials

Publication

- MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY (Materials Science and Engineering B-Advanced Functional Solid-State Materials) - Year 2024

In this study, high-quality and few-layered graphene was synthesized using the chemical vapor deposition (CVD) method from liquid sources. Two different liquid carbon sources, pyridine, and benzene, were used and deposited on nickel foam under heat conditions using a bubbler in a quartz tube. X-ray diffraction (XRD) and Raman analysis confirmed the crystalline properties of graphene and N-doped graphene, demonstrating the high...

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Dipodal Tetraamide Derivatives of 1,10-Diaza-18-Crown-6 and Alkylmalonic Acids—Synthesis and Use as Ionophores in Ion Selective Membrane Electrodes

Publication

- SENSORS - Year 2021

Novel dipodal derivatives of an 18-membered diaza-crown ether with two diamide chains featuring methylmalonic or butylmalonic acid residues were obtained and tested as ionophores in ion-selective plasticized membrane electrodes. The objective of the study was to identify measurement conditions which ensure the most favorable performance for magnesium ion-selective electrodes. The relationship between the molar lipophilic anion...

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Fast, sensitive and reliable multi-residue method for routine determination of 34 pesticides from various chemical groups in water samples by using dispersive liquid – liquid microextraction coupled with gas chromatography – mass spectrometry

Publication

M. Tankiewicz
M. Biziuk

- ANALYTICAL AND BIOANALYTICAL CHEMISTRY - Year 2018

A simple and efficient dispersive liquid-liquid microextraction technique (DLLME) was developed by using a mixture of two solvents: 40 μL of tetrachlorethylene (extraction solvent) and 1.0 mL of methanol (disperser solvent), which was rapidly injected with a syringe into 10mL ofwater sample. Some important parameters affecting the extraction efficiency, such as type and volume of solvents, water sample volume, extraction time,...

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A research on the optimal conditions for separation and identyfication of the components from the Droseraceae extracts by column liquid chromatography

Publication

- Year 2011

The isolation of the components with anticipated biological properties i.e. antimicrobial, fungicidal, antioxidant and perhaps anticancer activity is for many years a one of the biggest issues of modern separation science. Their obtaining based on the isolation of the components with the biological activity from in vitro cultured plants by extraction techniques is often more difficult than their production by the chemical synthesis.The...

Application of deep eutectic solvents in analytical sample pretreatment (update 2017–2022). Part A: Liquid phase microextraction

Publication

V. Andruch
A. Kalyniukova
J. Płotka-Wasylka
N. Jatkowska
D. Snigur
S. Zaruba
J. Płatkiewicz
A. Zgoła-Grześkowiak
J. Werner

- MICROCHEMICAL JOURNAL - Year 2023

Sustainable development in all branches of human activity has become an unequivocal necessity in the last two decades, and green chemistry goes hand in hand with it. Various ways have been proposed in analytical chemistry to meet the current requirements of green chemistry. One such approach is the research of new reagents and solvents for analytical purposes. Deep eutectic solvents (DESs) began being investigated and used in analytical...

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Modelling of vibrations of a liquid filled tank

Publication

K. Trębacki

- Polish Maritime Research - Year 2008

Przeprowadzono analizę teoretyczną i numeryczną zbiorników długich i krótkich wypełnionych całkowicie lub częściowo cieczą. Wyznaczenie obciążeń hydrodynamicznych dotyczy bezpośrednio wytrzymałości konstrukcji samego zbiornika, a przez to pozwala określić wytrzymałość konstrukcyjną całego kadłuba. Szczególne wymagania stawiane są zbiornikom do przewozu cieczy radioaktywnych, gdyż należy zapewnić bardzo wysoki stopień bezpieczeństwa...

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Liquid crystal thermography experimental application

Publication

- Year 2007

Praca przedstawia wykorzystanie termografii ciekłokrystalicznej do badania zjawisk wymiany ciepła z zastosowaniem metod stanu ustalonego i przejściowej.

Liquid Crystals in Analytical Chemistry: A Review

Publication

M. Sargazi
M. Linford
M. Kaykhaii

- CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY - Year 2019

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Multicomponent ionic liquid CMC prediction

Publication

- PHYSICAL CHEMISTRY CHEMICAL PHYSICS - Year 2017

We created a model to predict CMC of ILs based on 704 experimental values published in 43 publications since 2000. Our model was able to predict CMC of variety of ILs in binary or ternary system in a presence of salt or alcohol. The molecular volume of IL (Vm), solvent-accessible surface (Sˆ), solvation enthalpy (DsolvGN), concentration of salt (Cs) or alcohol (Ca) and their molecular volumes (Vms and Vma, respectively) were chosen...

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Hydrodynamics of tank partially filled with liquid.

Publication

K. Trębacki

- Year 2004

W artykule podano podstawowe równania dynamiki zbiornika wypełnionego częściowo cieczą. Na modelu tego zbiornika przeprowadzono badania eksperymentalne i wyniki tych badań przedstawiono jako efekt końcowy.

Effect of Laminar Pulsatile Fluid Flow on Separation of Volatile Organic Compounds from Aqueous Solution by a Hollow Fiber Membrane-Based Process

Publication

M. Kaykhaii
S. Kaykhaii
D. Mohebbi-Kalhori

- IRANIAN JOURNAL OF CHEMISTRY & CHEMICAL ENGINEERING-INTERNATIONAL ENGLISH EDITION - Year 2022

In this study, a laminar pulsatile fluid flow was used for the separation of benzene, toluene, ethylbenzene, and xylene isomers (BTEX) from aqueous solutions. Polyether sulfone hollow fiber membrane has been applied to this process. The effects of BTEX concentration, and feed and extraction flow rates were examined. It was found that the application of the pulsatile fluid flow with...

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The effect of metal cluster deposition route on structure and photocatalytic activity of mono- and bimetallic nanoparticles supported on TiO2 by radiolytic method

Publication

J. Nadolna
A. Gołębiewska
P. Mazerski
T. Klimczuk
H. Remita
A. Zaleska-Medynska
M. Klein

- APPLIED SURFACE SCIENCE - Year 2016

TiO2 (P25) was modified with small and relatively monodisperse mono- and bimetallic clusters (Ag, Pd, Pt, Ag/Pd, Ag/Pt and Pd/Pt) induced by radiolysis to improve its photocatalytic activity. The as-prepared samples were characterized by X-ray fluorescence spectrometry (XRF), photoluminescence spectrometry (PL), diffuse reflectance spectroscopy (DRS), X-ray powder diffractometry (XRD), scanning transition electron microscopy (STEM)...

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Removal of ketoprofen from surface water in a submerged photocatalytic membrane reactor utilizing membrane distillation: effect of process parameters and evaluation of long‐term performance

Publication

S. Mozia
R. Rajakumaran
K. Szymański
M. M. Gryta

- JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY - Year 2023

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Influence of aprotic solvent on selectivity of an amperometric sensor with nafion membrane

Publication

- ELECTROANALYSIS - Year 2006

W publikacji przedstawiono rezultaty badań dotyczące selektywności amperometrycznego czujnika ditlenku siarki z membraną nafionową wobec tlenku węgla i dwutlenku azotu jako interferentów. Zostały porównane współczynniki selektywności dla czujników wypełnionych roztworami elektrolitów zawierających wodne roztwory kwasu siarkowego i różne ilości rozpuszczalnika aprotycznego - dimetylosulfotlenku.

Influence of aprotic solvent on a signal of an amperometric sensor with Nafion membrane

Publication

- SENSORS AND ACTUATORS B-CHEMICAL - Year 2006

W pracy przedstawiono wyniki badań charakterystyk analitycznych amperometrycznego czujnika ditlenku siarki wyposażonego w mebranę nafionową i wypełnionego roztworami elektrolitów o różnej zawartości dimetylosulfotlenku. Ocenie poddany został wpływ zawartości DMSO w roztworze elektrolitu wewnętrznego czujnika oraz prędkości przepływu gazu na czułość czujnika i czas odpowiedzi na zmiany stężenia ditlenku siarki.