Sökning: "FTIR-analysis"

Visar resultat 1 - 5 av 16 uppsatser innehållade ordet FTIR-analysis.

  1. 1. Bläckborttagning från ben med hjälp av geler En kvantitativ studie för bläckborttagning på björnbäcken och björnkranium från Naturhistoriska riksmuseet

    Kandidat-uppsats, Göteborgs universitet/Institutionen för kulturvård

    Författare :Engla Nordin; [2023-11-07]
    Nyckelord :Conservation; reversibility; bones; FTIR; nanogels; hydrogels; ink.;

    Sammanfattning : This bachelor's thesis has investigated four different hydrogels loaded in different solvents efficiency to remove unknown ink from four pelvic bones and one skull from five bear individuals that belongs to The Swedish Museum of Natural History. The experimental part of the thesis consists of an FTIR analysis together with microscopy and macroscopy analysis of the ink on the bear skeletons, as well as some tests of different gel-solvent combinations on a moose skull. LÄS MER

  2. 2. ANALYS OCH IDENTIFIERING AV BEKÄMPNINGSMEDEL I HISTORISKA TEXTILIER

    Kandidat-uppsats, Göteborgs universitet/Institutionen för kulturvård

    Författare :Stina Johansson; [2023-06-15]
    Nyckelord :XRF-analysis; FTIR-analysis; Pesticide Identification; Historical Textiles;

    Sammanfattning : This essay will investigate the risks associated with pesticide contamination in textile collections and how information about pesticide content can be found. Uniforms from the collection of the now closed Gothenburg military museum was analysed using Dosa test strips for chloride content, XRF-analysis and ATR-FTIR analysis. LÄS MER

  3. 3. Production of polymers from a papermills wastewater using HTC substrate. : Investigating the viability of using wastewater sludge from Skoghalls’ papermill in combination with filtrate from HTC of sewage sludge to produce biological plastic producing polymers.

    Kandidat-uppsats, Karlstads universitet/Avdelningen för energi-, miljö- och byggteknik

    Författare :Regan George; [2023]
    Nyckelord :PHA; HTC-substrate; Polymer;

    Sammanfattning : Since their conception, plastics have been a dominant product due to the versatility of use, and readily available raw materials. However, the production and consumption of synthetic plastics have continued to increase over the years, leading to a significant rise in plastic waste and its associated environmental impacts, such as the detrimental effects plastic waste has on ecosystems, including the presence of toxic microplastics and risks to marine life, are becoming the focus of criticism. LÄS MER

  4. 4. Removal Characteristics of Fibrous and Particulate Microplastics : A Study of the Effectiveness of Coagulation-Flocculation- Sedimentation

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Amrith Kumar; [2022]
    Nyckelord :Coagulation; flocculation; jar test; microplastics; sedimentation; water treatment; Burktest; flockning; koagulering; mikroplaster; sedimentering; vattenrening;

    Sammanfattning : The rapid proliferation of microplastics (MPs) over the last few decades have raised alarms about the major environmental and health impacts posed by this anthropogenic source. The widespread propagation and transport of MP particles in water sources have accelerated the need to study the eco- toxicological impacts as well as the efficacy of various removal mechanisms from these critical water sources. LÄS MER

  5. 5. Experimental Study of Internal Injector Deposits In Internal Combustion Engines Using Renewable Fuels

    Master-uppsats, KTH/Materialvetenskap

    Författare :Patrick Kiprotich Korir; [2021]
    Nyckelord :;

    Sammanfattning : The  strive  to  minimize  emissions  in  the  automotive  industry  keeps gaining momentum. Continuous improvement of engine designs and development of more efficient  fuel  systems  in  diesel  vehicles  is  a  solution to  be  applauded. LÄS MER