Essays about: "organic solvent extraction"

Showing result 1 - 5 of 15 essays containing the words organic solvent extraction.

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

    University essay from Lunds universitet/Kemiska institutionen

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

    Abstract : 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. READ MORE

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

    University essay from Lunds universitet/Livsmedelsteknik och nutrition (master)

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

    Abstract : 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. READ MORE

  4. 3. Separation of Cobalt and Nickel using CYANEX 272 for Solvent Extraction

    University essay from KTH/Kemiteknik

    Author : Caroline Kihlbom; [2021]
    Keywords : Solvent extraction; cobalt-nickel separation; CYANEX 272; pregnant leach solution; cobalt sulphate; Vätskevätskeextraktion; kobolt-nickel separation; CYANEX 272; laklösning; koboltsulfa;

    Abstract : This project aimed to examine the separation of cobalt and nickel using solvent extraction (SX) with the extractant CYANEX 272 (C272). It was intended to investigate the Co-Ni separation in a sulphate-based leach solution in presence of other contaminants. READ MORE

  5. 4. Optimization of solid-phase extraction (SPE) as sample preparation for oil samples in forensic investigations.

    University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

    Author : Aamanda Chang; [2021]
    Keywords : Solid-phase extraction SPE ; heavy fuel oil HFO ; fingerprint; polycyclic aromatic hydrocarbons PAHs ; biomarkers.;

    Abstract : Oil spills, especially in water have happened throughout the years. The consequences from this kind of incident have always been a threat to marine life and take a lot of money and time to clean up. READ MORE

  6. 5. Pelagic fish oil : methods for extraction and purification

    University essay from SLU/Department of Molecular Sciences

    Author : Linda Näsbom; [2020]
    Keywords : Pelagic fish; muscle; lipids; fish oil; pollution; purification; extraction.;

    Abstract : The Pelagic fishes are a wide group of fishes that live in the open water. They could be divided in two groups depending on the size, the small forage fishes and the large predators. These fishes swim regularly and have muscles with high lipid content. There are two types of muscles in the fish. READ MORE