Essays about: "liquid-liquid extraction"

Showing result 11 - 14 of 14 essays containing the words liquid-liquid extraction.

  1. 11. Quantification of resin acids, fatty acids and sterols in process and waste water from forest industry

    University essay from Avdelningen för kemi och biomedicinsk vetenskap

    Author : Taner Ismailov; [2013]
    Keywords : effluent; waste water; forest industry; wood resin; wood extractives; resin acids; sterols; fatty acids; LLE; Liquid-liquid extraction; SPE; Solid phase extraction;

    Abstract : This work focuses on wood extractives in effluents from the CTMP plant at Skoghall Mill. Pulp and paper industry effluents contain mostly natural compounds which are part of the trees. They are toxic to aquatic life but harmless in nature, as they are present in low concentrations. READ MORE

  3. 12. Development and application of a solidphase extraction method for simultaneousdetermination of PAHs, oxy-PAHs andazaarenes in water samples

    University essay from Kemiska institutionen

    Author : Yu Wang; [2012]
    Keywords : ;

    Abstract : In this study, a solid phase extraction (SPE) method was developed that can be used to extract a wide range of polycyclic aromatic compounds (PACs), including polycyclic aromatic hydrocarbons (PAHs), oxygenated PAHs (oxy-PAHs) and azaarenes, from water samples. Three commercially available SPE materials, i.e. READ MORE

  4. 13. Identification of Swelling cause on Rubber Gaskets

    University essay from KTH/Skolan för kemivetenskap (CHE)

    Author : Jenny Fagerland; [2011]
    Keywords : EPDM gummipackningar; svällning; Analysmetod; lättflyktiga ämnen; svårflyktiga ämnen;

    Abstract : The aim of this master thesis was to develop an analysis method which identifies the swelling cause of EPDM rubber gaskets. The method shall facilitate failure investigation of rubber gaskets used in plate heat exchangers which require both determinations of volatile and involatile compounds as well as polar and non-polar compounds. READ MORE

  5. 14. A study of the urinary cotinine in the employees deriving from the exposure to nicotine at the Nicorette patch and the Nicorette gum production at Pfizer Health AB, Helsingborg

    University essay from Lunds universitet/Avdelningen för arbets- och miljömedicin

    Author : Jarl Håkansson; [2005]
    Keywords : Nikotin; nicotine; kotinin; cotinine; urin; urine; HPLC; nicorette; yrkesmedicin; miljömedicin; Environmental health; Medicine and Health Sciences;

    Abstract : Air sampling and biological sampling have been performed to examine the exposure to nicotine in the Nicorette patch and Nicorette gum production at Pfizer Health AB in Helsingborg, Sweden. For this purpose stationary and personal sampling equipment have been used. READ MORE