Browsing Institutt for kjemi by Title
Now showing items 614-633 of 1359
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Kjemo-enzymatisk syntese av enantiomert rene halogenerte syklopropaner og triflatestere
(Master thesis, 2014)Med utgangspunkt i en rasemisk blanding av 1-(2.2-dibrom-1-1metylsyklopropyl)etanol har enantiomert rent dihalobisyklobutanol blitt forsøkt syntetisert og karakterisert. Først ble en rasemisk blanding av (1R,1'R)-1a og ... -
Korleis ulike typar aerogel kan brukast til å fjerne olje frå havet
(Bachelor thesis, 2020)Ei rekkje forsøk har blitt utført opp igjennom tidene for å finne den beste metoden for fjerning av olje frå havet. Metodene som har blitt nytta kan klassifiserast som biologiske, kjemiske og fysiske metodar.[1] Nokre av ... -
Kumada Coupled Anti-Aggregation Moieties in Phenothiazine Dyes for Dye-Sensitized Solar Cells
(Master thesis, 2018)In the continuous search for renewable energy sources, dye-sensitised solar cells (DSSCs) have emerged as a very promising, low-cost solution. In the quest for higher efficiency and stability, the DSSC components are ... -
Kvantitativ analyse av 3-metyl-2-buten-1-tiol i øl.
(Bachelor thesis, 2020)For å kunne svare på bacheloroppgavens spørsmål sees det nærmere på hvordan 3-methyl-2-buten-1-tiol dannes i øl, og fra dette finne en egnet kvantitativ analysemetode for 3-metyl-2-buten-1-tiol i øl. Det oppnås ved å først ... -
Kvikksølv forurensing i naturlig vann, med hovedvekt på elvesystemer.
(Bachelor thesis, 2021)Kvikksølv er det mest flyktige av de forurensende tungmetallene, og kommer, hovedsaklig, fra industri, vulkaner og avfallskilder. Det blir enten transportert direkte til elver, eller indirekte via atmosfæren som luftpartikler. ... -
Kvikksølv i fisk fra norske innsjøer og antropogene kvikksølvforurensninger
(Bachelor thesis, 2022)Kvikksølv er et tungmetall som oppholder seg lenge i atmosfæren, og har gjennom tidene vært en urovekkende global forurensning. Grunnet den lange oppholdstiden i atmosfæren har den en evne til å transporteres langt vekk ... -
L-Tartaric Acid Derived Surfactants and N-Isopropylacrylamide Based Core-Shell Nanogels: Synthesis, Mechanistic Studies and Characterization
(Doctoral theses at NTNU;2016:344, Doctoral thesis, 2016) -
Laks og Gyrodactylus i Vefsna og Driva. Årsrapport 2004
(NINA rapport;34, Research report, 2005)Formålet med dette prosjektet er å øke kunnskapen om effekter av lakseparasittenG. sa-laris i vassdrag som har vært infisert i lang tid, særlig med hensyn til forekomsten av lang-tidsverter og mulige endringer i ... -
Langtidsmålinger av fysisk-kjemiske parametre i Orkla og tilstøtende elver - Med fokus på parametere som kan ha toksisk effekt ovenfor laksesmolt
(Master thesis, 2016)Det er gjort undersøkelser i Orkla og to sideelver, Raubekken og Vorma, for å se på om avrenning fra de nedlagte gruvene på Løkken og Dragset har en påvirkning på forholdene i elven og laks og laksesmolt som lever i elven. ... -
Large and extra-large pore acidic ITQ-zeotypes: An in-situ spectroscopic study of fundamental properties.
(Master thesis, 2010)The first aim of this thesis was to investigate the fundamental properties in the local environment around Ge in extra-large pore acidic ITQ-33 zeotype and large pore acidic ITQ-7 zeotype with in-situ X-ray absorption ... -
Large Area Patterning of Highly Reproducible and Sensitive SERS Sensors Based on 10-nm Annular Gap Arrays
(Peer reviewed; Journal article, 2022)Applicable surface-enhanced Raman scattering (SERS) active substrates typically require low-cost patterning methodology, high reproducibility, and a high enhancement factor (EF) over a large area. However, the lack of ... -
Large-Scale Electron Correlation Calculations: Rank-Reduced Full Configuration Interaction
(Journal article, 2018)We present the rank-reduced full configuration interaction (RR-FCI) method, a variational approach for the calculation of extremely large full configuration interaction (FCI) wave functions. In this report, we show that ... -
Latitudinal, seasonal and depth-dependent variation in growth, chemical composition and biofouling of cultivated Saccharina latissima (Phaeophyceae) along the Norwegian coast
(Journal article; Peer reviewed, 2020)The Norwegian coastline covers more than 10° in latitude and provides a range in abiotic and biotic conditions for seaweed farming. In this study, we compared the effects of cultivation depth and season on the increase in ... -
LC-MS/MS Analysis of Thyroid Hormones in Blood Serum: Instrumental Method Development and Optimization of Extraction from Bovine Serum
(Master thesis, 2017)Thyroid hormones are a class of hormones that are essential to mammals for maintaining normal cell functions. In this study, we developed an instrumental method for the analysis of four thyroid hormones: L-Thyroxine (T4), ... -
Leachate emissions of short- and long-chain perand polyfluoralkyl substances (PFASs) from various Norwegian landfills
(Journal article; Peer reviewed, 2019)Restrictions on the use of long-chain per- and polyfluoralkyl substances (PFASs) has led to substitutions with short-chain PFASs. This study investigated the presence of four short-chain PFASs and twenty-four long-chain ... -
Leaching of surfactants as a function of oil droplet size and surfactant properties. An approach using mass spectrometry and multivariate data analysis
(Master thesis, 2017)Oil dispersants are used extensively in order to minimize the environmental damage that often follows an oil spill. A widely used dispersant, Corexit 9500A, consists of four surfactants with different properties and a ... -
Lead concentrations in blood from incubating common eiders (Somateria mollissima) in the Baltic Sea.
(Journal article; Peer reviewed, 2020)Here we investigate if lead may be a contributing factor to the observed population decline in a Baltic colony of incubating eiders (Somateria mollissima). Body mass and blood samples were obtained from 50 incubating female ... -
Lead isotopic signatures in blood from incubating common eiders (Somateria mollissima) in the central Baltic Sea
(Peer reviewed; Journal article, 2020)The Christiansø colony of common eiders (Somateria mollissima) in the central Baltic Sea were exposed to high levels of Pb during the 2018 breeding season that were not present in 2017. Due to these high Pb blood levels, ... -
Legendre-Fenchel transforms capture layering transitions in porous media
(Peer reviewed; Journal article, 2022)We have investigated the state of a nanoconfined fluid in a slit pore in the canonical and isobaric ensembles. The systems were simulated with molecular dynamics simulations. The fluid has a transition to a close-packed ... -
A Legendre–Fenchel Transform for Molecular Stretching Energies
(Peer reviewed; Journal article, 2020)Single-molecular polymers can be used to analyze to what extent thermodynamics applies when the size of the system is drastically reduced. We have recently verified using molecular-dynamics simulations that isometric and ...