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Search results for: MALDI TOF MS
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Direct-Ultrasonic Assisted Microextraction Coupled with RTL-GC-FID/GC-MS as a Future Standard Procedure for Monitoring 26 potentially Allergenic Fragrances in Water Samples
PublicationThis research topic grew up as a result of awareness of constant anthropogenic and natural input to the environment constituents of personal care products (PCPs) residues. This group of emerging pollutants encompasses a wide range of chemicals, including potentially allergenic fragrance compounds. The aim of the present study was to investigate presence of 26 fragrance allergens in water samples. Simple and rapid methodology based...
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Wojciech Wojnowski dr inż.
PeopleUkończył V Liceum Ogólnokształcące w Gdańsku w klasie o profilu matematyczno-fizycznym z wykładowym językiem angielskim. W 2009 roku rozpoczął studia na Wydziale Chemicznym PG na kierunku technologia chemiczna, uzyskując w 2012 roku tytuł inżyniera, a w 2013 tytuł magistra. W latach 2013–2015 studiował sinologię na Uniwersytecie w Nankinie dzięki uzyskaniu Stypendium Rządu ChRL. Po powrocie do Polski w 2015 roku rozpoczął studia...
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Multi-residue method for the determination of 16 recently used pesticides from various chemical groups in aqueous samples by using DI - SPME coupled with GC-MS
PublicationA simple and solvent-free multi-residue method has been optimized to determine 16 currently used pesticides from different chemical groups in aqueous samples. The extraction of analytes was carried out with direct immersion solid-phase microextraction (DI-SPME) and for the identification and quantitative determination gas chromatography coupled with mass spectrometry (GC-MS) was applied. Two commonly used adsorbent coatings have...
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Identyfikacja lotnych składników ścieków z instalacji oksydacji asfaltów z wykorzystaniem chromatografii gazowej sprzężonej ze spektrometrią mas (GC-MS)
PublicationW pracy przedstawiono wyniki badań nad identyfikacją lotnych związków organicznych występujących w ściekach z instalacji oksydacji asfaltów. Ścieki poddano deemulgacji, w celu usunięcia fazy organicznej, a następnie ekstrakcji dichlorometanem, w celu wyizolowania pozostałych w ściekach związków organicznych. Zidentyfikowano 30 związków organicznych oraz szereg n-alkanów, które pozostały w ściekach pomimo zastosowanej deemulgacji....
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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
PublicationBenzodiazepines (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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Problems of PAH quantification by GC–MS method using isotope-labelled standards
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LC-ESI-MS profiling of Potentilla norvegica and evaluation of its biological activities
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Technology Acceptance of MS Teams Among University Teachers During COVID-19
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PTR-MS and electronic nose application for volatile fraction analysis of cigar tobacco
PublicationCigar consumers attach great importance to the quality of these products. At the same time, cigars are often expensive, so destructive analytical methods of quality control are not being desired. However, it has been found that there are many volatile organic compounds in their headspace. Because of that, proton transfer reaction–mass spectrometry and electronic nose were used to analyse it. The obtained results were used to distinguish...
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Simultaneous determination of ibuprofen and its metabolites in complex equine urine matrices by GC-EI-MS in excretion study in view of doping control
PublicationA novel assay for the simultaneous determination of ibuprofen (IBU) and its four probable metabolites, 1-hydroxyibuprofen (1-OH IBU), 2-hydroxyibuprofen (2-OH IBU), 3-hydroxyibuprofen (3-OH IBU) and carboxyibuprofen (CBX IBU) in equine urine samples with the application of Gas Chromatography-Electron Ionization-Mass Spectrometry (GC-EI-MS) has been developed and elaborated. The new approach for sample preparation including minimizing...
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Profile and Content of Phenolic Compounds in Leaves, Flowers, Roots, and Stalks of Sanguisorba officinalis L. Determined with the LC-DAD-ESI-QTOF-MS/MS Analysis and Their In Vitro Antioxidant, Antidiabetic, Antiproliferative Potency
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Understanding the early-stage release of volatile organic compounds from rapeseed oil during deep-frying of tubers by targeted and omics-inspired approaches using PTR-MS and gas chromatography
PublicationDuring deep-frying, a plethora of volatile products is emitted with the fumes. These compounds could act as oil quality indicators and change the indoor air composition leading to health risks for occupants. The presented experiments focus on deep-frying of different tubers in rapeseed oil at different frying temperatures. Here, two scenarios for real-time monitoring of volatile organic compounds (VOCs) using proton transfer reaction...
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Marzena Grygiel,WFTi MS, Matematyka,1 st 3sem, 2024/25z
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Non-volatile molecular composition and discrimination of single grape white of chardonnay, riesling, sauvignon blanc and silvaner using untargeted GC–MS analysis
PublicationThis study developed and applied a GC–MS method aiming at molecular fingerprinting of 120 commercial single grape white wines (Chardonnay, Riesling, Sauvignon Blanc and Silvaner) for possible authentication according to grape variety. The method allowed detection of 372 peaks and tentative identification of 146 metabolites including alcohols, organic acids, esters, amino acids and sugars. The grape variety effect explained 8.3%...
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The chromatographic analysis of extracts from poplar (Populus sp.) - Laying program GC-MS
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Endogenous oxidative DNA base modifications analysed with repair enzymes and GC/MS technique
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Identification of antioxidant polyphenolics from Jasione montana based on a preliminary LC-MS profiling
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A Robust Method for Sample Preparation of Gastrointestinal Stromal Tumour for LC/MS Untargeted Metabolomics
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Analysis of urinary nucleosides as potential cancer markers determined using LC–MS technique
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Identyfikacja i diagnostyka procesu oczyszczania ścieków przy użyciu metody MS-PCA
PublicationPołączenie algorytmu PCA z dekompozycją falkową pozwala na wiarygodną identyfikację i diagnostykę procesu z wieloma skalami czasu. Niniejszy artykuł pokazuje jak przy pomocy wspomianego narzedzia określić stan pracy obiektu oraz odpowiednio szybko wykryć uszkodzenia (np. czujników pomiarowych) lub stany awaryjne obiektu jakim jest oczyszczalnia ścieków. Przedstawiony jest przykład detekcji błędów pomiarowych (stężenie tlenu w komorze...
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Bezpośrednia analiza próbek z wykorzystaniem techniki spektrometrii mas. Cz. II. Technika PTR – MS – ciekawe rozwiązanie metodyczne w zakresie spektrometrii mas
PublicationTechnika spektrometrii mas stanowi niezwykle istotne narzędzie badawcze, umożliwiające uzyskanie wielu cennych informacji, dotyczących składu chemicznego wielu próbek rzeczywistych pochodzenia biologicznego, farmaceutycznego i spożywczego. Spektrometr mas zazwyczaj pełni role detektora w przypadku stosowania połączenia z urządzeniami chromatograficznymi (GC, LC). Dzięki zastosowaniu pewnych modyfikacji aparaturowych i metodycznych,...
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Marzena Grygiel, WFTi MS, Nanotechnologia, 1 st, 3sem, 2022/23 z
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Marzena Grygiel, WFTi MS, Nanotechnologia, 1 st, 4sem, 2022/ 23 l
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Statystyka I laboratorium, MF + AD + MS, sem. 5, zima 24/25
e-Learning CoursesObecność na laboratorium jest obowiązkowa. Dopuszcza się jedną nieusprawiedliwioną nieobecność w trakcie semestru. Zaliczenie laboratorium odbędzie się na ostatnich (lub przedostatnich) zajęciach. Formą zaliczenia będzie kolokwium z zadań, które należy rozwiązać korzystając z oprogramowania, podając otrzymane wyniki i interpretując je.
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Application of dynamic headspace and gas chromatography coupled to mass spectrometry (DHS-GC-MS) for the determination of oxygenated volatile organic compounds in refinery effluents
PublicationThe paper presents a new procedure for the determination of oxygenated volatile organic compounds (O-VOCs) in postoxidative effluents from the production of petroleum asphalt using dynamic headspace coupled to gas chromatography-mass spectrometry in the selected ion monitoring (SIM) mode (DHSGC-MS). Among the GC capillary columns tested, a polar SLB-IL111 column with the ionic liquid stationary phase was found to be superior due...
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Determining the true content of quercetin and its derivatives in plants employing SSDM and LC–MS analysis
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GC-MS-based untargeted metabolomics of plasma and urine to evaluate metabolic changes in prostate cancer
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Validated GC–MS method for determination of bisphenol a and its five analogues in dietary and nutritional supplements
PublicationBisphenol A (BPA) and its analogues showing structural and functional similarity to BPA are commonly applied in various industrial applications and thus are becoming ubiquitous in the environment. At the same time there is increasing scientific evidence that exposure to these chemicals may lead to adverse health effects in human and wildlife. In recent years dietary and nutritional supplements dedicated for athletes have become...
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The application of isotopically labeled analogues for the determination of small organic compounds by GC/MS with selected ion monitoring
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Method development and validation for optimized separation of the major polyphenolics in propolis extracts using GC-MS method
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Identification of odorant characters using GC-MS/O in biosolids emissions from aerobic and anaerobic stabilisation
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GC-MS analysis, antidiabetic and antioxidant activity of methanolic extract of pluteus cervinus: an in vitro and in silico approach
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Metodologia pracy zespołowe - S, MS, sem.06, letni 21/22 (M:31707W0)
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Analiza danych biznesowych z wykorzystaniem MS Excel – Power BI i Power Query
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Metodologia pracy zespołowej, W, MS, sem.06, letni 21/22 (M:31707W0)
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Flowers and Leaves Extracts of Stachys palustris L. Exhibit Stronger Anti-Proliferative, Antioxidant, Anti-Diabetic, and Anti-Obesity Potencies than Stems and Roots Due to More Phenolic Compounds as Revealed by UPLC-PDA-ESI-TQD-MS/MS
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Impact of Cluster Zone Leaf Removal on Grapes cv. Regent Polyphenol Content by the UPLC-PDA/MS Method
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Ekspertyza dotycząca przyczyn pęknięcia rurociągu 8”-096-P1059, zamówienie nr WU/0402/2020/MS
PublicationWykonano badania nieniszczące i niszczących próbek materiału rurociągu wraz z przygotowaniem próbek do badań z materiału rodzimego.
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Metabolic Evaluation of Urine from Patients Diagnosed with High Grade (HG) Bladder Cancer by SPME-LC-MS Method
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DNA methylation analysis with methylation‐sensitive high‐resolution melting (MS‐HRM) reveals gene panel for glioma characteristics
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Agata Kot-Wasik prof. dr hab. inż.
PeopleAgata Kot-Wasik, born in 1964 in Siedlce, graduated in 1988 from the Faculty of Chemistry, Gdańsk University of Technology in Industrial and Technical Analysis. In 1988-1992 she was employed in the Department of Organic Chemistry. In 1990, she completed postgraduate studies "Instrumental techniques in the traces analysis and Environmental Protection" at GUT, and in 1992 began PhD Studies at the Faculty of Chemistry, GUT, which...
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Method for the simultaneous determination of monoaromatic and polycyclic aromatic hydrocarbons in industrial effluents using dispersive liquid-liquid microextraction with GC-MS
PublicationWe present a new method for simultaneous determination of 22 monoaromatic and polycyclic aromatic hydrocarbons in postoxidative effluents from the production of petroleum bitumen using dispersive liquid-liquid microextraction coupled to gas chromatography and mass spectrometry. The eight extraction parameters including the type and volume of extraction and disperser solvent, pH, salting out effect, extraction and centrifugation...
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The potential role of fatty acids in prostate cancer determined by GC–MS analysis of formalin-fixed paraffin-embedded tissue samples
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Simultaneous determination of individual isothiocyanates in plant samples by HPLC-DAD-MS following SPE and derivatization with N-acetyl-l-cysteine
PublicationThe procedure for the isothiocyanates (ITCs) determination that involves derivatization with N-acetyl-l-cysteine (NAC) and separation by HPLC was developed. Prior to derivatization, plant ITCs were isolated and purified using solid-phase extraction (SPE). The optimum conditions of derivatization are: 500 μL of isopropanolic eluate obtained by SPE combined with 500 μL of derivatizing reagent (0.2 M NAC and 0.2 M NaHCO3 in water)...
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Study of effect of phosphate and uranium ions on the thermal properties of surfactant-modified natural red clay using TG–FTIR–MS techniques
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Concentration of Potentially Bioactive Compounds in Italian Extra Virgin Olive Oils from Various Sources by Using LC-MS and Multivariate Data Analysis
PublicationHigh quality extra virgin olive oils represent an optimal source of nutraceuticals. The European Union (EU) is the world’s leading olive oil producer, with the Mediterranean region as the main contributor. This makes the EU the greatest exporter and consumer of olive oil in the world. However, small olive oil producers also contribute to olive oil production. Beneficial effects on human health of extra virgin olive oil are well...
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Determination of pharmaceutical residues in drinking water in Poland using a new SPE-GC-MS(SIM) method based on Speedisk extraction disks and DIMETRIS derivatization
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KONSULTACJE / SDW-MS, WMI-W, PB-W / Wydział Inżynierii Mechanicznej i Okrętownictwa / sem. zimowy 2021/2022 (PG)
e-Learning CoursesKONSULTACJE PRZEZNACZONE SĄ DLA STUDENTÓW: - SZKOŁY DOKTORSKIEJ WDROŻENIOWEJ - PG: Mechanika Stosowana (W) - STUDIÓW INZYNIERSKICH I STOPNIA - MiBM, MTR, ZiIP - WIMiO: WMI (W) - STUDIÓW INŻYNIERSKICH I STOPNIA - MiBM st. niestacj. - WIMiO - WMI (W) - STUDIÓW MAGISTERSKICH II STOPNIA - TKiS - WIMiO - Pojazdy Bezzałogowe (W) KONSULTACJE ODBYWAJĄ SIĘ ZDALNIE w CZWARTEK w godz. 15.00-17.00
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Wpływ stopowania laserowego z użyciem nanorurek węglowych stopu Ti13Nb13Zr do zastosowań biomedycznych na jego wybrane własności mechaniczne
PublicationDo eksperymentu użyto stopu tytanu Ti13Nb13Zr, który ze względu na swój skład chemiczny i właściwości mechaniczne stanowi materiał do zastosowań w inżynierii medycznej. Celem pracy była ocena wpływu stopowania laserowego stopu Ti13Nb13Zr z powłoką z wielościennych nanorurek węglowych na jego właściwości mechaniczne (chropowatość, nanotwardość, moduł Younga). Do wytworzenia powłoki węglowej wykorzystano metodę osadzania elektroforetycznego (EDP)....
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Phenolic composition and antioxidant properties of polish blue-berried honeysuckle genotypes by HPLC-DAD-MS, HPLC postcolumn derivatization with ABTS or FC, and TLC with DPPH visualization
PublicationIn this study, different Polish cultivars of blue-berried honeysuckles (Lonicera caerulea L.), wild and bog bilberry, were analyzed for bioactive compounds. The chemical properties verified included composition of anthocyanins and other polyphenols, antioxidant activity, and profiles of antioxidants by HPLC postcolumn derivatization or TLC. The antioxidant activities of different blue-berried honeysuckle cultivars were similar...