Search results for: BILOGICAL SAMPLES

• Comparison of extraction techniques of robenidine from poultry feed samples

  Publication

  • J. Wilga
  • A. Kot-Wasik
  • J. Namieśnik

  - Talanta - Year 2007

  W publikacji opisano wykorzystanie różnych technik ekstrakcji kokcydistatyków (na przykładzie robenidyny) z próbek pasz zwierzęcych. W trakcie badań porównano wpływ różnych parametrów ekstrakcji na współczynniki odzysku analitu. Wśród wykorzystanych technik ekstrakcji wymienić należy: ekstrakcję za pomocą rozpuszczalnika wspomaganą ultradźwiękami oraz mikrofalami, ekstrakcję w aparatach Soxhleta i Soxteca a także ekstrakcję przez...

• Isotope-labeled substances in analysis of persistent organicpollutants in environmental samples

  Publication

  • A. Mechlińska
  • L. Wolska
  • J. Namieśnik

  - TRAC-TRENDS IN ANALYTICAL CHEMISTRY - Year 2010

  Ultratrace analysis of persistent organic pollutants (POPs) in environmental samples requires very sophisticated methods for both sample preparation and instrumental analysis. The complex matrix requires a multi-stage procedure. Each stage is a potential source of error, as a consequence of which the final result of analysis could be a source of misinformation rather than information. The individual stages and the procedure as...

• DETERMINATION OF SURFACTANTS IN ENVIRONMENTAL SAMPLES. PART II. ANIONIC COMPOUNDS

  Publication

  • E. Olkowska
  • M. Ruman
  • A. Kowalska
  • Ż. Polkowska

  - Ecological Chemistry and Engineering S - Chemia i Inżynieria Ekologiczna S - Year 2013

  Surfactants (SAA) with negative charge of polar group are named as anionic compounds. They are main constituent of most products containing synthetic surfactants. The linear alkylbenzene sulfonates (LAS), alkyl ethoxysulfates (AES) and alkyl sulfates (AS) are typically applied from this class of compounds. Those surfactants are ingredients of household detergents and cleaners, laundry detergents, cosmetic. Moreover they can be...

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• Study of Cloud Water Samples Collected over Northern Poland

  Publication

  • Ż. Polkowska
  • M. Błaś
  • D. Lech
  • J. Namieśnik

  - JOURNAL OF ENVIRONMENTAL QUALITY - Year 2014

  The paper gives the results of the first studies on the chemistry of cloud water collected during 3 mo (Aug.–Oct. 2010) in the free atmosphere over the area to the south of the Tri-City (Gdansk-Sopot-Gdynia) conurbation on the Gulf of Gdansk, Poland. Taken from cumulus, stratus, and stratocumulus clouds by means of an aircraft-mounted collector, the water samples were analyzed for the following contaminants: anions (chlorides,...

• Potential Toxic Effects of Airport Runoff Water Samples on the Environment

  Publication

  • A. M. Sulej-Suchomska
  • P. Przybyłowski
  • Ż. Polkowska

  - Sustainability - Year 2021

  Despite the positive aspects of the intensive development of aviation, airports are considered large-scale polluters. Pollution caused by runoff water (stormwater) is one of the major problems related to airport operations. The aim of this study was to characterize the potential toxic impact on aquatic life from runoff water discharges from four international airports in Europe. Samples of stormwater were collected at airports...

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• FOLIA BIOLOGICA-KRAKOW

  Journals

  ISSN: 0015-5497 , eISSN: 1734-9168

• Rapid and simple multi-analyte LC–MS/MS method for the determination of benzodiazepines and Z-hypnotic drugs in blood samples: Development, validation and application based on three years of toxicological analyses

  Publication

  • L. Banaszkiewicz
  • M. K. Woźniak
  • M. Kata
  • E. Domagalska
  • M. Wiergowski
  • B. Szpiech
  • A. Kot-Wasik

  - JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS - Year 2020

  Benzodiazepines (BZDs) and Z-drugs have been particularly important treatments for sleeping and anxiety disorders for many years. However, recently, a number of new benzodiazepines (named designer benzodiazepines, DBZDs) were synthesised, but some of them have never been used in the clinic; they reached the black drug market as new psychoactive substances and are used for recreational purposes. The abuse of these substances has...

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• Biological Research for Nursing

  Journals

  ISSN: 1099-8004 , eISSN: 1552-4175

• CHEMICO-BIOLOGICAL INTERACTIONS

  Journals

  ISSN: 0009-2797 , eISSN: 1872-7786

• Medical and Biological Sciences

  Journals

  ISSN: 1734-591X

• BIOLOGICAL & PHARMACEUTICAL BULLETIN

  Journals

  ISSN: 0918-6158

• BIOLOGICAL PROCEDURES ONLINE

  Journals

  ISSN: 1480-9222

• BIOLOGICAL AGRICULTURE & HORTICULTURE

  Journals

  ISSN: 0144-8765 , eISSN: 2165-0616

• Applied Biological Research

  Journals

  ISSN: 0972-0979 , eISSN: 0974-4517

• Journal of Biological Engineering

  Journals

  ISSN: 1754-1611

• Applied Biological Chemistry

  Journals

  ISSN: 2468-0834 , eISSN: 2468-0842

• Journal of Biological Dynamics

  Journals

  ISSN: 1751-3758 , eISSN: 1751-3766

• Management of Biological Invasions

  Journals

  ISSN: 1989-8649

• Doklady Biological Sciences

  Journals

  ISSN: 0012-4966

• Journal of Biological Macromolecules

  Journals

  ISSN: 1347-2194

• Journal of Biological Control

  Journals

  ISSN: 0971-930X , eISSN: 2230-7281

• JOURNAL OF BIOLOGICAL EDUCATION

  Journals

  ISSN: 0021-9266 , eISSN: 2157-6009

• Marine Biological Journal

  Journals

  ISSN: 2499-9768 , eISSN: 2499-9776

• JOURNAL OF BIOLOGICAL RHYTHMS

  Journals

  ISSN: 0748-7304 , eISSN: 1552-4531

• Sleep and Biological Rhythms

  Journals

  ISSN: 1446-9235 , eISSN: 1479-8425

• Psiquiatria Biologica

  Journals

  ISSN: 0104-7787

• A comparative study of the performance of passive samplers

  Publication

  • B. Zabiegała
  • C. Sarbu
  • M. Urbanowicz
  • J. Namieśnik

  - JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION - Year 2011

  Podstawowym celem podjętych badań było porównanie pracy dozymetrów pasywnych wykorzystywanych na etapie izolacji i wzbogacania lotnych związków organicznych z powietrza atmosferycznego na terenie aglomeracji Trójmiejskiej. Jako próbniki do pobierania próbek analitów zastosowano komercyjne dozymetry pasywne typu dyfuzyjnego (Radiello i Orsa 5) oraz dozymetry typu permeacyjnego własnej konstrukcji wyposażone w półprzepuszczalną membranę...

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• Sanguiins—Promising Molecules with Broad Biological Potential

  Publication

  • J. Gesek
  • K. Jakimiuk
  • A. Atanasov
  • M. Tomczyk

  - International Journal of Molecular Sciences - Year 2021

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• Biological activity of tuftsin and its two analogues

  Publication

  • A. Wardowska
  • K. Dzierzbicka
  • P. Trzonkowski
  • A. Myśliwski

  - Year 2005

  Przedstawiono badania, których celem była ocena wpływu analogów tuftsyny na żywotność mononuklearnych komórek krwi obwodowej (PBMC), limfocytów krwi obwodowej (PBL) i monocytów, ocena wpływu sekrecji czynnika martwicy nowotworu alfa (TNF) i interleukiny 6 (IL6) oraz zbadanie wpływu badanych związków na cytotoksyczność nuturalnych komórek zabójczych (NK).

• Recent developments in the synthesis and biological activity of muramylpeptides

  Publication

  • K. Dzierzbicka
  • A. Wardowska
  • P. Trzonkowski

  - CURRENT MEDICINAL CHEMISTRY - Year 2011

  Zaprezentowano przegląd literaturowy obejmujący syntezę i aktywność biologiczną nowych analogów muramylopeptydów (MDP) oraz ich potencjalne zastosowanie w terapii nowotworowej i chorób infekcyjnych.

• Anatomy of noise in quantitative biological Raman spectroscopy

  Publication

  • J. Smulko
  • N. Chari Dingari
  • J. S. Soares
  • I. Barman

  - BIOANALYSIS - Year 2014

  Raman spectroscopy is a fundamental form of molecular spectroscopy that is widely used to investigate structures and properties of molecules using their vibrational transitions. It relies on inelastic scattering of monochromatic laser light irradiating the specimen. After appropriate filtering the scattered light is dispersed onto a detector to determine the shift from the excitation wavelength, which appears in the form of...

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• Challenges in coupling atmospheric electricity with biological systems

  Publication

  • E. Hunting
  • J. Matthews
  • P. de
  • S. England
  • K. Kourtidis
  • K. Koh
  • K. Nicoll
  • R. Harrison
  • K. Manser
  • C. Price... and 4 others

  - INTERNATIONAL JOURNAL OF BIOMETEOROLOGY - Year 2021

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• Photo-acoustic response of active biological systems

  Publication

  • N. Gouskos
  • K. Aidinis
  • G. Papadopoulos
  • J. Majszczyk
  • J. Typek
  • J. Rybicki
  • M. Maryniak

  - OPTICAL MATERIALS - Year 2008

  Zbadano dwie próbki organiczne gatunku Trunculariopsis trunculus,jedną wilgotną, drugą - suchą. W obu przypadkach zaobserwowanointensywne szerokie pasma absorpcyjne w zakresie widzialnym (żółtymi poniżej 330 nm). Widma foto-akustyczne zawierają wszystkie pasma uznane za związane z aktywnością biologiczną.

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• MutS3: a MutS homologue of unknown biological function

  Publication

  • M. Banasik

  - Acta Biochimica Polonica - Year 2011

  The homologues of MutS proteins are widespread among both Prokaryotes and Eukaryotes. MutS designated as MutS1 is a part of MMR (mismatch repair) system which is responsible for removal of mispaired bases and small insertion/deletion loops in DNA. Initially, the only MutS homologues known were those engaged in mismatch repair and these were later designated as MutS1. Subsequently, the MutS2 homologue was distinguished. MutS2 does...

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• Synthesis of Combretastatin A-4 Analogs and their Biological Activities

  Publication

  • A. Siebert
  • M. Gensicka-Kowalewska
  • G. Cholewiński
  • K. Dzierzbicka

  - Anti-Cancer Agents in Medicinal Chemistry - Year 2016

  Combretastatin A-4 (CA-4) is a natural product, which consists of two phenyl rings, linked by an ethylene bridge. CA-4, inhibitor of polymerization of tubulin to microtubules, possesses a strong antitumor and anti-vascular properties both in vitro and in vivo. Previous studies showed that disodium phosphate salt of CA-4, a water-soluble prodrug is well tolerated at therapeutically useful doses. However, it should be noted that...

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• The influence of biological environment on the silver-coated implants

  Publication

  • B. Świeczko-Żurek
  • I. Inkielewicz-Stępniak
  • K. Sawicka

  - International Journal of Sciences: Basic and Applied Research - Year 2016

  This paper deals with implants covered with nanosilver

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• Chemical, biological and functional aspects of food lipids

  Publication

  • Z. Sikorski

  - Year 2010

• Noise sources in Raman spectroscopy of biological objects

  Publication

  • J. Smulko
  • M. Wróbel

  - Year 2017

  We present an overview of noise sources deteriorating the quality of the recorded biological Raman spectra and the ability to determine the specimen composition. The acquired Raman spectra exhibit intense additive noise components or drifts because of low intensity of the scattered light. Therefore we have to apply expensive or bulky measurement setups to limit their inherent noise or to apply additional signal processing to reduce...

• Surface-dependent biological potential of spherical silver nanoparticles

  Open Research Data

  embargo

  • M. Krychowiak-Maśnicka
  • W. Wojciechowska
  • K. Bogaj
  • A. Bielicka-Giełdoń
  • E. Czechowska
  • M. Ziąbka
  • M. Narajczyk
  • A. Kawiak
  • T. Mazur
  • B. Szafranek
  • A. Królicka

  The growing interest in silver nanoparticles (AgNPs) is largely driven by their significant antimicrobial potential. As carriers of reactive silver ions on a nanoscale, AgNPs are considered excellent candidates for specific antibacterial strategies. Numerous scientific studies have highlighted that AgNPs are broad-spectrum antimicrobials, with their...

• 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

  Publication

  • M. Sajid
  • M. Kabeer
  • M. K. Nazal
  • M. Younas
  • J. Płotka-Wasylka

  - ChemistrySelect - Year 2024

  Multiwalled 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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• Validation and Regulatory Issues for Sample Preparation

  Publication

  • P. Konieczka

  - Year 2012

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• Introductory Chapter: Evolution of Sample Preparation

  Publication

  • M. Kaykhaii

  - Year 2021

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• Introductory Chapter: Evolution of Sample Preparation

  Publication

  • M. Kaykhaii

  - Year 2021

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• Justyna Płotka-Wasylka dr hab. inż.

  People

  Faculty of Chemistry, Department of Analytical Chemistry

  Urodziła się w Słupsku (24.03.1986).W 2005 roku ukończyła I Liceum Ogólnokształcące im. Jana II Sobieskiego w Wejherowie i rozpoczęła studia na Wydziale Chemicznym Politechniki Gdańskiej. Po ich ukończeniu w 2010 rozpoczęła pracę naukową na tej uczelni, uzyskując w 2014 roku stopień doktora nauk chemicznych. Tematem jej rozprawy doktorskiej, wykonywanej pod kierunkiem prof. Marka Biziuka oraz dr Caluma Morrisona (Uniwersytet w...

• Selection of material for X-ray tomography analysis and DEM simulations: comparison between granular materials of biological and non-biological origins

  Publication

  • L. Babout
  • K. Grudzień
  • J. Wiącek
  • M. Niedostatkiewicz
  • B. Karpiński
  • M. Szkodo

  - GRANULAR MATTER - Year 2018

  Physical properties and X-ray tomography images of five different granular materials: glass bead, glass grit, short grain white rice, sorghum and clay granules (Seramis) are investigated to select the most promising materials for numerical simulations and time-lapse X-ray tomography imaging. The examined materials represent granular materials of non-biological origin (glass bead, glass grit and Seramis) and granular plant materials...

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• JOURNAL OF BIOLOGICAL INORGANIC CHEMISTRY

  Journals

  ISSN: 0949-8257 , eISSN: 1432-1327

• Microextraction by packed sorbent: Uncommon detection techniques, sorbents, samples and analytes

  Publication

  • V. Andruch
  • A. Kalyniukova
  • T. Yordanova
  • J. Płotka-Wasylka
  • V. Vojteková
  • G. Zengin

  - TRAC-TRENDS IN ANALYTICAL CHEMISTRY - Year 2024

  Among sample preparation approaches, the most desirable are procedures that ensure high efficiency and reproducibility, that are cheap, fast and simple, that minimize the number of operational steps and that require a small amount of sample and solvent and are thus environmentally friendly. Microextraction by packed sorbent (MEPS) is a miniaturized form of solid-phase extraction, the use of which has been continuously expanding...

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• Determining PAHs and PCBs in aqueous samples: finding and evaluating sources of error

  Publication

  • L. Wolska
  • M. Rawa-Adkonis
  • J. Namieśnik

  - Year 2005

  W pracy opisano wyniki badań modelowych (z wykorzystaniem dopowiednich roztworów wzorcowych), których celem było wykrycie źródeł błędów oznaczeń oraz oszacowanie ich wielkości. Przedmiotem badań było oszacowanie wpływu takich procesów jak:- adsorpcja na ściankach naczyń,- adsorpcja na cząstkach materii zawieszonej,- usuwanie nadmiaru rozpuszczalnika (z ekstraktu)na wyniki oznaczeń końcowych.

• Non-regulated organic compounds (NROC's) in the Odra River water samples.

  Publication

  • A. Kuczyńska
  • L. Wolska
  • J. Namieśnik

  - Year 2004

  W ramach badań opisanych w pracy podjęto próbę identyfikacji lotnych i średniolotnych związków z grupy Non-Regulated Organic Compounds obecnych w próbkach wody rzecznej. Analizie poddano 25 próbek wód pobranych z rzeki Odry w październiku 2000, w trakcie VIII kampanii zorganizowanej w ramach International Odra Project (IOP). W badaniach wykorzystano technikę PT-TD-GC-MS.Komputerowa analiza widm masowych wykazała obecność wielu...

• Derivatisation in gas chromatographic determination of acidic herbicides inaqueous environmental samples.

  Publication

  • M. Rompa
  • E. Macutkiewicz
  • B. Zygmunt

  - ANALYTICAL AND BIOANALYTICAL CHEMISTRY - Year 2003

  W pracy przedstawiono przegląd literaturowy dotyczący wykorzystania derywatyzacji w oznaczaniu herbicydów kwasowych w wodnych próbkach środowiskowych za pomocą chromatografii gazowej. Omówiono główne typy reakcji (transestryfikacja, estryfikacja, sililowanie, alkilacja, alkilacja ekstraktywna i pirolityczna), które powodują utworzenie pochodnych, łatwych do analizy techniką chromatografii gazowej. Scharakteryzowano także...