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Showing 1 to 20 of 53 for “"HPLC-UV"”.

  1. Development of a simple HPLC-UV method for determination of GFR by serum iohexol clearance

    van Der Westhuizen, Diederick JDepartment of Clinical Laboratory Sciences2022

    … chromatography with ultraviolet detection (HPLCUV). The method developed includes a mobile phase with water and acetonitrile with a gradient of 5%-30% organic, a C18 analytical column (100 × 4.6 mm, 2.7 µm particle size) at a temperature of 40 °C and a flow rate of 0.5 ml/min. Serum samples …

    cape-town Repository record

  2. Schnelles und zuverlässiges therapeutisches Drug-Monitoring mit HPLC-UV und LC/LC-MS/MS aus komplexen Matrizes

    Egle, Hannes

    … zu vermeiden. Zur Gewährleistung einer zuverlässigen Detektion wurden HPLC- und LC-MS-Methoden erarbeitet. Die Bestimmung per Massenspektrometer bietet die Möglichkeit einer noch spezifischeren Detektion im Vergleich zu klassischen Techniken wie UV-VIS- und Fluoreszenz-Detektion. <br>Für …

    freiburg-diss Repository record

  3. Nanomaterials Self-Assembly Driven by Beta-Amyloid Peptides

    Tanase, Maria Elena

    … with the nano materials were studied using HPLC, UV-vis spectroscopy, TEM and optical light microscopy.

    uno Repository record

  4. INVESTIGATION OF INOSINE AND HYPOXANTHINE AS BIOMARKERS OF CARDIAC ISCHEMIA IN PLASMA OF NON-TRAUMATIC CHEST PAIN PATIENTS AND A RAPID ANALYTICAL SYSTEM FOR ASSESSMENT

    Farthing, Don E2014

    … liquid chromatographic ultraviolet detection (HPLC-UV). The final phase of this research involved the development of a rapid luminometer test method (An HPLC-UV detection method was developed and utilized for inosine, hypoxanthine and other adenosine triphosphate (ATP) catabolic by-products in …

    vcu Repository record

  5. Development of micro-scale and automated membrane extraction systems for water analysis

    Wang, Xiaoyan

    … film). The concentrated extract was analyzed by HPLC and the separation was achieved within 12 minutes. Enrichment factors as high as 4555 were obtained in a 60-minute extraction. This represented a 27 times enhancement over that has been preiously published in the literature. Detection limits …

    njit Repository record

  6. Desarrollo de nuevos métodos analíticos para la extracción, preconcentración y determinación de contaminantes emergentes en muestras ambientales

    Aguinaga Martínez, Maite V.2023

    … con su posterior separación y detección por HPLC-UV. En el tercer y cuarto trabajo se desarrollaron films de agarosa y nanopartículas a base de carbono para la extracción en fase sólida de antiinflamatorios no esteroideos y progestágenos, con su posterior separación y detección por HPLC-UV. …

    uns-ar Repository record

  7. Isolierung und Charakterisierung neuer Naturstoffe aus Schwamm-assoziierten Mikroorganismen

    Lang, GerhardUniversität Würzburg

    … mit der Hochdruckflüssigchromatographie (HPLC) gekoppelter spektroskopischer Methoden war es dabei möglich, bekannte Sekundärmetabolite frühzeitig zu erkennen und so die Suche nach neuen Naturstoffen besonders effizient zu gestalten. Dabei wurden neben den gängigen Verfahren HPLC-UV und …

    wurz-thes Repository record

  8. Možnosti enkapsulace kofeinu

    Patočková, KláraVysoké učení technické v Brně. Fakulta chemická

    … Účinnost enkapsulace byla stanovena pomocí HPLC/UV-VIS. U připravených částic byla sledována jejich velikost a stabilita metodou dynamického rozptylu světla. Částice byly vystaveny účinku umělé žaludeční, pankreatické a žlučové šťávy. Byla sledována stabilita částic a množství uvolněného …

    brno-tech Repository record

  9. A high-performance liquid chromatography system with Fenton's reagent for detection of gas-phase hydrogen peroxide

    Liu, Jun

    A simple quantitative HPLC method for analysis of gas-phase hydrogen peroxide (H2O2) has been developed. This method relies on conversion of sodium salicylate to dihydroxybenzoic acid, sodium salts by using Fenton's reagent (a mixture of H2O2 and ferrous iron) under the proper conditions. Hydroxyl …

    unlv Repository record

  10. Papain: a Novel Urine Adulterant.

    Burrows, David2004

    … liquid chromatography/ultraviolet detection (HPLC/UV) of nordiazepam was performed in order to determine if the mechanism of urine adulteration by papain was analyte specific. Control and adulterated urine specimens (n=30) were assayed for creatinine, specific gravity and pH to determine if …

    etsu Repository record

  11. The study of a drug coating applied using a cold atmospheric plasma: everolimus coating properties

    Frewen, ChloeUniversity College Cork2025

    … Raman spectroscopy, deep ultraviolet (DUV) mapping, and atomic force microscopy (AFM). A reverse-phase high performance liquid chromatography- ultra violet (HPLC/UV) method was developed to quantify the drug deposition and analyse the stability after deposition. Imaging of the coated …

    cork Repository record

  12. In vitro and in vivo studies on the biotransformation of β-nicotyrine, a minor tobacco alkaloid

    Liu, XinVirginia Tech1995

    … lung and liver microsomal preparations utilizing HPLC UV-diode array analysis. Four metabolites have been identified from the incubation mixtures of β-nicotyrine with rabbit lung and liver microsomal preparations. The primary in vitro metabolites are two unstable pyrrolinone species, …

    vt Repository record

  13. High Pressure Liquid Chromatography Studies of the Reaction of Platinum Complexes with Peptides

    Muneeruddin, Khaja

    … preliminary research focuses to answer this by HPLC-UV-VIS analysis of bulky platinum complexes including [Pt(dien)Cl]Cl, Pt(Me4en)(NO3)2 and Pt(en)(NO3)2 with two methionine containing small peptides that serve as models for protein interactions.

    wku-diss Repository record

  14. Stanovení aktivních látek v instantních nápojích určených pro dětskou výživu

    Jašková, MartinaVysoké učení technické v Brně. Fakulta chemická

    … látek a kofeinu byla použita metoda RP-HPLC/UV-VIS a HPLC/PDA/LC-MS, identifikace individuálních mono- a disacharidů byla provedena pomocí HPLC/RI. Kyselina L-askorbová, kterou jsou některé dětské nápoje obohacovány, byla analyzována metodou HPLC-NH2/UV. Pro orientační analýzu obsahu …

    brno-tech Repository record

  15. Photochemistry of Polycyclic Aromatic Hydrocarbons with Environmentally Relevant Metals

    Haynes, John P.2018

    … analyzed by high-pressure liquid chromatography (HPLC), UV-Vis, attenuated total reflectance Fourier transformer infrared spectroscopy (ATR-FTIR), solid-phase extraction (SPE), and electrospray ionization/atmospheric pressure chemical ionization mass spectroscopy (ESI/APCI-MS). HULIS production is …

    denver Repository record

  16. ΜΕΛΕΤΗ ΤΩΝ ΧΗΜΙΚΩΝ ΣΥΣΤΑΤΙΚΩΝ ΤΟΥ ΦΥΤΟΥ CYCLAMEN GRAECUM L

    Γεωργαντά, ΣταματικήΕθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ)1990

    … IDENTIFIED USING CLASSICAL TECHNIQUES (PC,TLC,CC,HPLC,UV,IR,NMR,MS,GLC,HYDROLYSIS). THE FLAVONOIDS ARE FOUR GLUCOSIDES OF DIHYDROKAEMPFEROL (3-0- GALACTOSIDE, 3-0-GLU 3-0-GALACTOSYL-GLUCOSIDE AND 3-0-GLUCOSYL- GLUCOSIDE) AND THE QUENKETIN-3-0-GLUCO IN THE LEAVES HAVE BEEN IDENTIFIED THE …

    greece Repository record

  17. Možnosti fortifikace vybraných cereálních výrobků

    Hurtová, JanaVysoké učení technické v Brně. Fakulta chemická

    … na analýzu individuálních flavonoidů metodou RP-HPLC/UV-VIS, spektrofotometrické stanovení celkových a redukujících sacharidů, ale také mono- a disacharidů metodou HPLC/RI. Ve všech cereálních výrobcích byly analyzovány změny obsahu individuálních flavonoidů a sacharidů po kyselé hydrolýze, …

    brno-tech Repository record

  18. Establishing a protocol to measure tetrodotoxin (TTX) levels in small bodied newts (genus Lissotriton) in western Europe

    Wagstaff, RM2021

    … extraction protocols before employing HPLC/UV/Vis spectrometry. While strong candidate peaks for TTX were identified in some samples, the employed approach was not sufficiently sensitive to unambiguously demonstrate its presence. Three of the adult newts collected from England were …

    salford Repository record

  19. Evaluation of Surface Acetylated Bacterial Cellulose for Antibacterial Wound Dressing Applications

    Bertucio, Timothy JosephVirginia Tech2022

    … the degree of substitution was determined by HPLC-UV. Indirect contact human cell cytotoxicity assays using extracts from surface acetylated bacterial cellulose showed no cytotoxic effect on human umbilical vein endothelial cells. Two types of antibacterial assays were performed in which …

    vt Repository record

  20. Quantitative Analysis of Antioxidants from High Density Polyethylene (HDPE) by off-line Supercritical Fluid Extraction Coupled High Performance Liquid Chromatography

    Pinto, Angela MarieVirginia Tech1997

    … high density polyethylene (HDPE) followed by HPLC/UV analysis. The effects of temperature, modifier type, and modifier concentration were investigated. Once the optimal extraction conditions were determined, the extraction efficiency of Ethanox ® 330 as a single additive and in the presence …

    vt Repository record

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