Search Results - "Nowak, Paweł Mateusz"

The Acid-Base/Deprotonation Equilibrium Can Be Studied with a MicroScale Thermophoresis (MST) by Nowak, Paweł Mateusz, Woźniakiewicz, Michał

“…MicroScale thermophoresis (MST) is a rapidly developing bioanalytical technique used routinely for the examination of ligand-target affinity. It has never been…”
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Determination of acid dissociation constant of 20 coumarin derivatives by capillary electrophoresis using the amine capillary and two different methodologies by Nowak, Paweł Mateusz, Woźniakiewicz, Michał, Piwowarska, Monika, Kościelniak, Paweł

“…•PKa of 20 coumarin derivatives has been determined by capillary electrophoresis.•Coumarins’ acidity strongly depends on chemical structure (pKa between…”
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Comprehensive Assessment of Flow and Other Analytical Methods Dedicated to the Determination of Zinc in Water by Kościelniak, Paweł, Nowak, Paweł Mateusz, Kozak, Joanna, Wieczorek, Marcin

“…An original strategy to evaluate analytical procedures is proposed and applied to verify if the flow-based methods, generally favorable in terms of green…”
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ChlorTox Base – a useful source of information on popular reagents in terms of chemical hazards and greenness assessment by Nowak, Paweł Mateusz, Bis, Alicja, Zima, Aleksandra

“…•674 chemical substances characterized in terms of hazards.•WHN values as the main parameter determining how hazardous in overall is given reagent.•Easy use of…”
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The First Online Capillary Electrophoresis-Microscale Thermophoresis (CE-MST) Method for the Analysis of Dynamic Equilibria—The Determination of the Acidity Constant of Fluorescein Isothiocyanate by Nowak, Paweł Mateusz, Klag, Maria, Kózka, Gabriela, Gołąb, Małgorzata, Woźniakiewicz, Michał

“…This article presents the first successful application of a capillary electrophoresis-microscale thermophoresis tandem technique (CE-MST) for determining the…”
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Carbon footprint of the analytical laboratory and the three-dimensional approach to its reduction by Nowak, Paweł Mateusz, Bis, Alicja, Rusin, Marcelina, Woźniakiewicz, Michał

“…•Electricity consumption studied for several laboratory instruments (separation techniques).•Carbon dioxide emission estimated based on the empirical data,…”
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White Analytical Chemistry: An approach to reconcile the principles of Green Analytical Chemistry and functionality by Nowak, Paweł Mateusz, Wietecha-Posłuszny, Renata, Pawliszyn, Janusz

“…The concept of White Analytical Chemistry (WAC) is presented as an extension of Green Analytical Chemistry (GAC). We propose the 12 WAC principles as an…”
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Simultaneous quantification of food colorants and preservatives in sports drinks by the high performance liquid chromatography and capillary electrophoresis methods evaluated using the red-green-blue model by Nowak, Paweł Mateusz

“…•Food preservatives and colorants quantified in sports drinks by CE and HPLC methods.•Amounts of colorants are rather safe, whereas preservatives, potential…”
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simple method for assessment and minimization of errors in determination of electrophoretic or electroosmotic mobilities and velocities associated with the axial electric field distortion by Mateusz Nowak, Paweł, Woźniakiewicz, Michał, Kościelniak, Paweł

“…It is commonly accepted that the modern CE instruments equipped with efficient cooling system enable accurate determination of electrophoretic or…”
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A Perspective of the Comprehensive and Objective Assessment of Analytical Methods Including the Greenness and Functionality Criteria: Application to the Determination of Zinc in Aqueous Samples by Nowak, Paweł Mateusz, Wietecha-Posłuszny, Renata, Woźniakiewicz, Michał, Woźniakiewicz, Aneta, Król, Małgorzata, Kozak, Joanna, Wieczorek, Marcin, Knihnicki, Paweł, Paluch, Justyna, Telk, Anna, Mermer, Karolina, Kochana, Jolanta, Kościelniak, Paweł, Pawliszyn, Janusz

“…The recently proposed concept of White Analytical Chemistry (WAC), referring to the Red-Green-Blue color model, combines ecological aspects (green) with…”
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Overview of the three multicriteria approaches applied to a global assessment of analytical methods by Nowak, Paweł Mateusz, Kościelniak, Paweł, Tobiszewski, Marek, Ballester-Caudet, Ana, Campíns-Falcó, Pilar

“…Critical and global evaluation of analytical methods should be one of the primary goals in analytical chemistry. A holistic approach, however, requires a look…”
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Comparison of various sample preparation methods for benzodiazepines in terms of the principles of white analytical chemistry by Jain, Bharti, Jain, Rajeev, Nowak, Paweł Mateusz, Ali, Nemat, Ansari, Mohd Nazam, Kabir, Abuzar, Chandravanshi, Lalit Pratap, Sharma, Shweta

“…Benzodiazepines are highly prevalent class of drugs utilized worldwide. They have been used as antidepressants and tranquilizers while also possessing the…”
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Exploring a new format of thermophoretic measurement – Stop-flow microscale thermophoresis in the narrow-bore transparent capillary by Nowak, Paweł Mateusz, Zima, Aleksandra, Bis, Alicja, Biel, Iwona, Woźniakiewicz, Michał

“…[Display omitted] •a new format of thermophoretic measurement presented.•narrow-bore transparent capillary: miniaturization, multiple measurements, coupling…”
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Origin of Remarkably Different Acidity of HydroxycoumarinsJoint Experimental and Theoretical Studies by Nowak, Paweł Mateusz, Sagan, Filip, Mitoraj, Mariusz Paweł

“…In the present work the origin of highly varied acidity of hydroxycoumarins (pK a values) has been for the first time investigated by joint experimental and…”
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Differentiation of isomeric metabolites of carbamazepine based on acid-base properties; Experimental vs theoretical approach by Nowak, Paweł Mateusz, Mitoraj, Mariusz, Sagan, Filip, Wietecha-Posłuszny, Renata

“…•The acidity (pKa) of carbamazepine isomeric derivatives was studied.•Thermodynamics and structural effects contributing to deprotonation were…”
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A sustainable approach for the stability study of psychotropic substances using vitreous humor and liver as alternative matrices by Wójtowicz, Anna, Reciak, Marcin, Nowak, Paweł Mateusz, Wietecha-Posłuszny, Renata

“…The stability of psychotropic substances representing various drug groups important from the perspective of forensic chemistry, including benzodiazepines,…”
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Influence of pH measurement inaccuracy on the values of acidity constant determined on the basis of electrophoretic and thermophoretic data by Nowak, Paweł Mateusz, Biel, Iwona, Kózka, Gabriela, Klag, Maria, Woźniakiewicz, Michał

“…[Display omitted] •The impact of pH error on pKa values was analyzed.•The electrophoretic and thermophoretic methods were considered.•Resulting uncertainty of…”
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Improving repeatability of capillary electrophoresis—a critical comparison of ten different capillary inner surfaces and three criteria of peak identification by Nowak, Paweł Mateusz, Woźniakiewicz, Michał, Gładysz, Marta, Janus, Magdalena, Kościelniak, Paweł

“…A poor repeatability of migration times caused by the fluctuations of electroosmotic flow (EOF) is an inherent weakness of capillary electrophoresis. Most…”
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Thermodynamics of acid-base dissociation of several cathinones and 1‐phenylethylamine, studied by an accurate capillary electrophoresis method free from the Joule heating impact by Nowak, Paweł Mateusz, Woźniakiewicz, Michał, Mitoraj, Mariusz, Sagan, Filip, Kościelniak, Paweł

“…•An easy method for reducing the impact of Joule heating on pKa values was shown.•The magnitude of related errors in pKa, ΔH° and -TΔS° values was…”
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Assessment and Comparison of the Overall Analytical Potential of Capillary Electrophoresis and High-Performance Liquid Chromatography Using the RGB Model: How Much Can We Find Out? by Nowak, Paweł Mateusz, Sekuła, Edyta, Kościelniak, Paweł

“…The choice between capillary electrophoresis (CE) and high-performance liquid chromatography (HPLC) is not easy and depends on many factors. An attempt to…”
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