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Combination of homogeneous liquid–liquid extraction and vortex assisted dispersive liquid–liquid microextraction for the extraction and analysis of ochratoxin A in dried fruit samples: Central composite design optimization
PublikacjaThis paper presents a new analytical procedure based on combination of homogeneous liquid–liquid extraction (HLLE) and vortex-assisted dispersive liquid–liquid microextraction (VA-DLLME) for the accurate and reliable determination of ochratoxin A (OTA) in dried fruit samples. To enable selective extraction of the OTA, six hydrophobic deep eutectic solvents (hDESs) were prepared and tested as extraction solvents. Optimization of...
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Investigation of vortex assisted magnetic deep eutectic solvent based dispersive liquid–liquid microextraction for separation and determination of vanadium from water and food matrices: Multivariate analysis
PublikacjaA new and simple vortex assisted magnetic deep eutectic solvent dispersive liquid–liquid microextraction procedure (VA-MDES-DLLME) was developed for the determination of vanadium (V) in food and water samples by flame atomic absorption spectrometry (FAAS). In the extraction medium, a bis(acetylpivalylmethane) ethylenediimine (H2APM2en) was used for the complexation of V(V) in sample solution at pH 6. The VA-MDES-DLLME was optimized...
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Dispersive Micro‐Solid Phase Extraction of Selected Metals in Water and Food Samples Followed by ICP‐OES Analysis: Method Development, Analysis of Real Samples and Greenness Evaluation
PublikacjaMultiwalled carbon nanotubes (MWCNTs) are well-known adsorbents because of their high surface area, layered and hollow architecture, hydrophobicity, and multiple and easily accessible adsorption sites. In this study, MWCNTs were used for dispersive micro-solid-phase extraction of various metal chelates in environmental and food samples. Different parameters such as concentration of the chelating reagent, the sorbent dosage, the...
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Prace Instytutu Techniki Budowlanej - Kwartalnik
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Modus. Prace z Historii Sztuki
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Geoinformatica Polonica : prace Komisji Geoinformatyki
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Prace Instytutu Mechaniki Górotworu PAN
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Prace Naukowe Politechniki Śląskiej. Elektryka
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Prace Wrocławskiego Towarzystwa Naukowego Seria A
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PRACE INSTYTUTU MINERALNYCH MATERIAŁÓW BUDOWLANYCH
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PRACE NAUKOWE POLITECHNIKI WARSZAWSKIEJ. SERIA:KONFERENCJE
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PRACE INSTYTUTU GEODEZJI I KARTOGRAFII
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Prace Komisji Historii Nauki PAU
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Práce z dějin akademie věd
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Ultrashort Opposite Directed Pulses Dynamics with Kerr Effect and Polarization Account
PublikacjaWe present the application of projection operator methods to solving the problem of the propagation and interaction of short optical pulses of different polarizations and directions in a nonlinear dispersive medium. We restrict ourselves by the caseof one-dimensional theory, taking into account material dispersion and Kerr nonlinearity. The construction of operators is delivered in two variants: for the Cauchy problem and for the...
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Prace Studentów Politechniki Wrocławskiej. Seria : Konferencje
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Analysing the Residential Market Using Self-Organizing Map
PublikacjaAlthough the residential property market has strong connections with various sectors, such as construction, logistics, and investment, it works through different dynamics than other markets; thus, it can be analysed from various perspectives. Researchers and investors are mostly interested in price trends, the impact of external factors on residential property prices, and price prediction. When analysing price trends, it is beneficial...
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Magnetic hydrophobic deep eutectic solvents for orbital shaker-assisted dispersive liquid-liquid microextraction (MAGDES-OS-DLLME) - determination of nickel and copper in food and water samples by FAAS
PublikacjaIn this work, a cheap and widely applicable dispersive liquid-liquid microextraction (DLLME) method was developed for the extraction of Ni(II) and Cu(II) from water and food samples and analysis using flame atomic absorption spectrometry. DLLME was assisted by orbital shaker, while ferrofluid as an extractant was based on deep eutectic solvent (DES). This ferrofluid was made of hydrophobic DES (hDES), composed of lauric acid and...
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Efficacy of rice husk biochar and compost amendments on the translocation, bioavailability, and heavy metals speciation in contaminated soil: Role of free radical production in maize (Zea mays L.)
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Household Ability of Expenditures on Electricity and Energy Resources in the Countries That Joined the EU after 2004
PublikacjaThe purpose of the following article is to present the situation of the energy market from a household perspective between 2010 and 2020 in selected EU countries (the group of member states which joined EU after 2004). The selected countries when joining the EU had similar economic indicators and to some extent were similar in other macro-economic situations (personal income, unemployment rate, GDP level and annual growth). This...
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Convergence or divergence in the European Union
PublikacjaThe disparities in economic prosperity revealed both from inter-country and inter-region perspective are one of the main problem in the modern economy. They consist of the dispersion in the real values such as incomes, GDP or productivity, but also nominal values such as prices and costs. The European Union is aware of this problem hence the role of the regional and structural policy aiming enhancing the cohesion between member...
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Prace Etnograficzne. Zeszyty Naukowe Uniwersytetu Jagiellońskiego
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Prace Wrocławskiego Towarzystwa Naukowego Seria B
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Prace Historyczne : Zeszyty Naukowe Uniwersytetu Jagiellońskiego
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Prace Naukowe Instytutu Technicznego Wojsk Lotniczych
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Prace Instytutu Ceramiki i Materiałów Budowlanych
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Prace Instytutu Profilaktyki Społecznej i Resocjalizacji
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Prace Naukowe Uniwersytetu Śląskiego Romanica Silesiana
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PRACE NAUKOWE POLITECHNIKI WARSZAWSKIEJ, SERIA: ELEKTRYKA
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PRACE NAUKOWE POLITECHNIKI WARSZAWSKIEJ, SERIA: ARCHITEKTURA
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PRACE NAUKOWE POLITECHNIKI WARSZAWSKIEJ, SERIA: BUDOWNICTWO
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PRACE NAUKOWO-BADAWCZE INSTYTUTU MASZYN MATEMATYCZNYCH
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PRACE KOMISJI HISTORII BYDGOSKIEGO TOWARZYSTWA NAUKOWEGO
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PRACE NAUKOWE POLITECHNIKI WARSZAWSKIEJ, SERIA: CHEMIA
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Prace Naukowe AJD. Edukacja Plastyczna. Fotografia
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PRACE NAUKOWE POLITECHNIKI WARSZAWSKIEJ, SERIA: GEODEZJA
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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
PublikacjaA 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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Prace Instytutu Metalurgii Żelaza
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Share of gross value added by factors of production prices generated by the enterprise sector in Poland and in the EU countries in the GDP of individual countries
Dane BadawczeCompanies operating in the EU countries are characterized by a greater contribution to the creation of GDP than Polish enterprises. Discrepancies in shaping the described value also result from a different industry structure of companies. In other EU countries, more companies are involved in services, and in Poland, enterprises conducting commercial...
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Share of gross value added by factors of production prices generated by the enterprise sector in Poland and in the EU countries in the GDP of individual countries
Dane BadawczeCompanies operating in the EU countries are characterized by a greater contribution to the creation of GDP than Polish enterprises. Discrepancies in shaping the described value also result from a different industry structure of companies. In other EU countries, more companies are involved in services, and in Poland, enterprises conducting commercial...
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Prace Językoznawcze
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Prace Literaturoznawcze
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PRACE I MATERIAŁY INSTYTUTU ROZWOJU GOSPODARCZEGO SGH
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Prace Komisji Geografii Przemysłu Polskiego Towarzystwa Geograficznego
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Prace Naukowe Instytutu Inżynierii Lądowej Politechniki Wrocławskiej
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Prace Naukowe Instytutu Energoelektryki Politechniki Wrocławskiej. Konferencje
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PRACE NAUKOWE POLITECHNIKI WARSZAWSKIEJ, SERIA: INŻYNIERIA MATERIAŁOWA
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PRACE INSTYTUTÓW I LABORATORIÓW BADAWCZYCH PRZEMYSŁU SPOŻYWCZEGO
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Prace Komisji Kultury Słowian Polskiej Akademii Umiejętności
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Modelling of the Polish Electricity Generation Subsystem in MARKAL Program with Emphasis on the EU Emissions Trading Scheme
PublikacjaThis paper addresses issues related to greenhouse gas emissions in the European Union and measures to reduce them, in particular the European Emissions Trading Scheme (EU ETS). A model of the Polish electricity generation subsystem, taking into account EU ETS mechanisms, has been developed using the MARKAL optimization package. Data collected on the basis of available projects, regulations and statistics were entered into the model....