Sökning: "Flame detector"

Visar resultat 1 - 5 av 13 uppsatser innehållade orden Flame detector.

  1. 1. Analysis of fatty acids in fatty acid-based herbicides by gas chromatography

    Master-uppsats, Lunds universitet/Kemiska institutionen

    Författare :Mohamad Abd Elwadood; [2023]
    Nyckelord :Analytical Chemistry; Fatty Acids; Gas Chromatography; Green Herbicides; Retention Index; Flame Ionization Detector; Mass Spectrometry; Supercritical Carbon Dioxide Extraction.; Chemistry;

    Sammanfattning : Fatty acids-based herbicides are considered to be a green alternative to synthesized weed control products. However, the environmentally sustainable effect of those herbicides needs more investigation to be confirmed. LÄS MER

  3. 2. Riskreducerande åtgärder för vätgasläckage

    Master-uppsats, Lunds universitet/Avdelningen för Brandteknik

    Författare :Jacob Kuhs; Oskar Zubac; [2022]
    Nyckelord :Hydrogen; Risk reduction measures; Risk mitigation; Gas leak detection; Leakage sound; Ultrasonic; Ultrasound; Gas leak detector; USGD; UGLD; Fire detection; Flame detector; Flame spectroscopy; Spectrum; Technology and Engineering;

    Sammanfattning : Hydrogen use increase and so does the knowledge about its risks, but not necessarily about how to handle these risks. Limited literature is available about risk mitigation for hydrogen use, the objective of this thesis is to increase this knowledge. LÄS MER

  4. 3. DURABILITY STUDY OF REJUVENATED RAP BINDERS

    Master-uppsats, KTH/Kemiteknik

    Författare :An Na Lay; [2022]
    Nyckelord :RAP reclaimed asphalt pavement ; rejuvenator; bitumen; rheology; ageing; RAP; bitumen; föryngringsmedel; reologi; åldring;

    Sammanfattning : När priset på naturtillgångar ökar samt att industrier måste ställa om till en mer hållbar verksamhet innebär detta även en omställning för asfaltsindustrin. Ett sätt för att använda mer återvunnet material i asfaltsindustri är att använda bindemedlet från gammal asfaltsmassa (eng.: reclaimed asphalt pavement, RAP). LÄS MER

  5. 4. Fettsyror i öl : Kvalitativ analys av fettsyreprofiler ur bryggningsprocessen vid Åbro Bryggeri

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för kemi och biomedicin (KOB)

    Författare :Mikael Subhi Aboode; [2022]
    Nyckelord :;

    Sammanfattning : Beer is a fermented alcoholic beverage that spans back to over 5000 years years ago and is consumed all over the world. Beer is usually made from malted barley but it can also be made from different cereals and starches. Beer contains both saturated and unsaturated fatty acids (FA) which are derived from the malt that is used. LÄS MER

  7. 5. Analysis of polyfunctional thiols in beer : Developing a novel method of extraction and analysis using GC-FID

    Master-uppsats, Lunds universitet/Livsmedelsteknik och nutrition (master)

    Författare :Arvid Lindmark; [2022]
    Nyckelord :Beer; Hops; Thiols; 3MHA; 4MMP; Food Technology; Agriculture and Food Sciences;

    Sammanfattning : In this project, attempts were made to identify and quantify two polyfunctional thiols – 4-mercapto-4-methyl-pentanone and 3-mercaptohexyl acetate – and three monoterpene alcohols – linalool, geraniol, and β-citronellol – in beer samples. In order to avoid the use of hazardous compounds such as dichloromethane and hydroxymercuriobenzoate, common in traditional methods, two novel techniques were tested: a pure liquid-liquid extraction of the beer samples with cyclohexane, and a liquid-liquid extraction with cyclohexane followed by solid phase extraction on silver ion columns. LÄS MER