Sökning: "gas chromatography-mass spectrometry GC-MS ."

Visar resultat 11 - 15 av 33 uppsatser innehållade orden gas chromatography-mass spectrometry GC-MS ..

  1. 11. Gas Chromatography-Mass Spectrometry of Volatile Organic Compounds from four Species of Grass Extracts from known Oviposition sites for Malaria Vectors

    Kandidat-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Cagenna Linne Magendran; Felicia Karlahag; Amanda Hamrin; Madeleine Lövås; [2020]
    Nyckelord :VOC; SPE; UAE; terpener; malariavektor;

    Sammanfattning : Tidigare studier har visat att äggläggande malariavektorer attraheras till vissa flyktiga organiska ämnen (VOC) som finns i olika gräsarter. Syftet med den här studien var att verifiera att flyktiga organiska ämnen finns i fyra olika gräsarter från Kenya; Panicum repens,Cynodon dactylon och Cyperus papyrus med Pennisetum setaceum rubrum som kontroll förde andra gräsarterna. LÄS MER

  3. 12. Biomonitoring of soil remediation workers´ exposure to polycyclic aromatic compounds (PACs) – method development and characterisation of PACs in blood

    Kandidat-uppsats, Örebro universitet/Institutionen för naturvetenskap och teknik

    Författare :Julia Jejdling; [2019]
    Nyckelord :occupational exposure; creosote; contaminated sites; gas chromatography-mass spectrometry GC-MS .;

    Sammanfattning : For a long period of time, it has been common to use creosote for impregnation of railroad ties. Creosote consists of 85% polycyclic aromatic hydrocarbons (PAHs), of which some are carcinogenic and/or mutagenic. LÄS MER

  4. 13. Induction of plant defence and secretion of volatile compounds by Colletotrichum acutatum in leaf infection assay of woodland strawberry

    Kandidat-uppsats, SLU/Dept. of Biosystems and Technology (from 130101)

    Författare :Joubin Haji Mirza Ali; [2018]
    Nyckelord :Plant Defence; PAMP-triggered immunity; Colletotrichum acutatum; Anthracnose Disease; Pathogen; Fragaria vesca; Woodland Strawberry; Leaf Infection; Volatile Secretion; β-caryophyllene;

    Sammanfattning : Consumers demand healthy food with less residues of pesticides, in addition to the global awareness of the negative impact such chemicals have caused to the environment during the last decades. Farmers and other agricultural participants are far away from completely end up the usage of pesticides but currently used practice could stepwise be improved in pest management. LÄS MER

  5. 14. Kärlanvändning i urban miljö under vikingatid : Lipidanalys av keramik från Birka med GC-MS

    Kandidat-uppsats, Stockholms universitet/Arkeologiska forskningslaboratoriet

    Författare :Sara Werner; [2018]
    Nyckelord :birka; lipids; GC-MS; viking age;

    Sammanfattning : An analysis of 6 ceramic shards from the Viking Age town Birka was performed by use of Gas Chromatography-Mass Spectrometry. A new interpretation of a previously analyzed material, was performed by analyzing the raw data from 18 ceramic shards. LÄS MER

  7. 15. Determination of FAME in Gasoline : A Fuel Quality Analysis

    Uppsats för yrkesexamina på grundnivå, Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Författare :Rasmus Fransson; [2018]
    Nyckelord :FAME; Determination of FAME; Gasoline; GC-MS; Gas Chromatography Mass Spectrometry; Biodiesel in Gasoline; Fuel Quality Analysis;

    Sammanfattning : Gasoline is produced by distilling petroleum oil. This is done at a refinery, where a lot of other products are produced as well. With increasing interest in bio-fuels the fuel companies started to produce substances such as biodiesel as well as the petroleum-based fuels. LÄS MER