Sökning: "kemiska ämnen"
Visar resultat 1 - 5 av 173 uppsatser innehållade orden kemiska ämnen.
1. Formulation development, rheological characterization, and cosmetic evaluation of gel-creams
Master-uppsats, Lunds universitet/Livsmedelsteknik och nutrition (master)Sammanfattning : Oil in water (o/w) emulsions are thermodynamically unstable systems composed of small oil droplets dispersed in a continuous aqueous phase. This means that given enough time, the two phases will separate. Pharmaceutical emulsions are used as a method of administering the Active Pharmaceutical Ingredient (API) for topical applications. LÄS MER
2. Det är inte bara en PFAS : Om begränsningen av evighetskemikalier i EU
Uppsats för yrkesexamina på avancerad nivå, Karlstads universitet/Handelshögskolan (from 2013)Sammanfattning : I Europa kan omkring 20 miljoner människor vara exponerade för dricksvatten som innehåller evighetskemikalien PFAS. Tidigare har försök att begränsa enskilda PFAS-ämnen endast resulterat i att det förbjudna ämnet i fråga har bytts ut till ett annat PFAS-ämne. LÄS MER
3. Effects of recirculating water treatment sludge
Master-uppsats, Lunds universitet/Kemiteknik (CI)Sammanfattning : Drinking water is crucial in our everyday life. As with many other processes, it is important to produce water of drinking quality in a sustainable manner. This can occur by e.g. LÄS MER
4. Synthesis and Characterization of NCN Pincer Nickel Complexes
Master-uppsats, Lunds universitet/Kemiska institutionenSammanfattning : In this work, a series of nickel NCN complexes and ligands have been synthesized with the goal of determining whether they can perform so-called CO2-insertion reactions into Ni-C bonds. So far, only the synthesis of the Ni-Br precursor complexes to the previously mentioned Ni-C complexes have been synthesized. LÄS MER
5. Development and understanding of a model V2O5/anatase TiO2(101) SCR catalyst
Master-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionenSammanfattning : A model V2O5/ anatase TiO2(101) SCR catalyst is studied with the purpose of developing and understanding the reaction mechanism through which this catalyst reduces NOx. Several reaction mechanisms have been proposed for this catalyst in the past, but there is still no agreement on which of these describe the reaction the best, if any. LÄS MER