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Now showing items 1-77 of 77
(Master thesis / Masteroppgave, 2009)
Organokatalyse er et felt i vekst etter at det ble gjenoppdaget rundt år 2000. Samtidig har immobilisert organokatalyse også blitt viet mer oppmerksomhet de siste ti årene. Til nå har det vært vanlig å immobilisere ...
(Master thesis / Masteroppgave, 2009)
Hovedmålet med denne oppgaven har vært å utforske ALD som en mulighet for å syntetisere lagdelte strukturer av α-Fe2O3 og FeTiO3. I tillegg har et helt nytt system for tilførsel av titantetraisopropoksid (Ti-tip) uten bruk ...
(Master thesis / Masteroppgave, 2009)
I dette arbeidet har de to til nå mest komplekse zeolittstrukturene som er kjent, TNU-9 (TUN) og IM-5 (IMF), blitt syntetisert. Forsøk på syntese av ITQ-13 har også blitt utført.
Alle de tre strukturene har egenskaper som ...
(Master thesis / Masteroppgave, 2009)
Grunnstoff 106, seaborgium, tilhører de aller tyngste grunnstoffene, transaktinidene. Som forberedelse til kjemisk undersøkelse av seaborgium med ekstraksjonssystemet SISAK, er et kjemisk system begynt utviklet med de ...
(Master thesis / Masteroppgave, 2009)
ABSTRACT
In this study, we will try to develop different microgel systems for enhanced oil recovery applications. The usage of microgels for this application has not been much studied, but it seems to have a great potential. ...
(Master thesis / Masteroppgave, 2009)
The world second largest mercury (Hg) mine and smelter, the Khaidarkan Mercury Plant (KMP) is located in Khaidarkan, a small city in a valley in Batken oblast, Kyrgyzstan. The smelter roasts locally
mined cinnabar and ...
(Master thesis / Masteroppgave, 2009)
ABSTRACT
In this study, 6-chloropurines with varied substituents in the 2 and 9 or 7 positions were functionalized in the 8-position. This was done via lithiation and subsequent bromination to form 8-brominated purines.
It ...
(Master thesis / Masteroppgave, 2009)
Defect chemical investigations on the LaNbO4-LaTaO4 system are, except for investigations on the parent phases, LaNbO4 and LaTaO4, non-existent. Research on this system is required to understand the impact of tantalum-doping ...
(Master thesis / Masteroppgave, 2009)
Ba3La(PO4)3 har i en tidligere studie vist å lede protoner ved høye temperaturer. Aspekter tilknyttet defektstrukturen og transportmekanismene krever imidlertid nærmere undersøkelser og denne oppgaven tilstreber å gi en ...
Asymmetrisk syntese av Venlafaxin analoger Restricted Access
(Master thesis / Masteroppgave, 2009)
SAMMENDRAG
Hensikten med dette prosjekt var å utvikle kjemiske metoder for asymmetrisk fremstilling av en serie Venlafaxin analoger som skulle testes for biologisk aktivitet i sentralnervesystemet. Siden det ikke ble oppnådd ...
(Master thesis / Masteroppgave, 2009)
(Master thesis / Masteroppgave, 2009)
(Master thesis / Masteroppgave, 2009)
Investigations into new degasser technology for SISAK Restricted Access
(Master thesis / Masteroppgave, 2009)
Prototypen på et nytt væske-ekstraksjonssystem (microSISAK) for benytting i studier av kortlivede radionuklider har blitt utprøvd på langlivede nuklider. Studiene ble gjennomført ved institutt for kjernekjemi ved universitetet ...
(Master thesis / Masteroppgave, 2009)
Abstract
Developing a process in which natural gas, coal and biomass can be converted to valuable petrochemical products is becoming increasingly important. The methanolto-hydrocarbon (MTH) reactions constitute the final ...
Development of a LC-MS/MS method for comparing brain tumour samples Restricted Access
(Master thesis / Masteroppgave, 2009)
(Master thesis / Masteroppgave, 2009)
Katalyse er et felt innen kjemien som blir stadig viktigere. Utviklingen av nye koordinasjonspolymerer, også kjent som MetallOrganiske Nettverk (MetalOrganic Framework - MOF), er viktig i jakten på nye effektive katalysatorer ...
(Master thesis / Masteroppgave, 2009)
(Master thesis / Masteroppgave, 2009)
I dette arbeidet er det for første gang deponert tynne filmer av α-Bi2O3 med ALD. Det er undersøkt tre forskjellige forløpere for vismutoksider: BiPh3 (Ph = fenyl), Bi(OtBu)3 (OtBu = tert-butoksy) og Bi(thd)3 (thd = ...
(Master thesis / Masteroppgave, 2009)
Metylklorid-til-hydrokarboner (MeXTH)-prosessen er et trinn i oppgraderingen av naturgass til alkener. Prosessen unngår produksjon av syntesegass som er en energikrevende prosess. I dette arbeidet sammenlignes to ...
(Master thesis / Masteroppgave, 2009)
This work presents the first reported thin film deposition of α-Bi2O3 by ALD (Atomic Layer Deposition). In addition, thin films of Co3O4 and CoO are for the first time reported deposited by ALD from the respective novel ...
(Master thesis / Masteroppgave, 2008)
Chinas fast-growing economy has led to an increase in the releases of many heavy metals. These releases affect both the local environment through soil and water contamination, but also the regional and global environment ...
(Master thesis / Masteroppgave, 2008)
Some types of cancers are more difficult to treat than others, and to date, there is no general accepted standard approach how to treat pancreatic cancer. The aim of this project was to
construct an immunotoxin with an ...
(Master thesis / Masteroppgave, 2008)
Den siste tiden har inhibitorer av reopptakstransportører for nevrotransmittere blitt viet stor oppmerksomhet. Det er gjort mange forsøk på å finne nye forbindelser, ettersom denne typen inhibitorer kan ha interessante ...
(Master thesis / Masteroppgave, 2008)
6-Aryl-9-substituted benzylpurines as antimycobacterial agents have been previously studied in our group.1-5 The structural activity relationship (SAR) of antimycobacterial purines is generally well understood5 (Figure 1, ...
Trace determination of sulphur mustard and related compounds in environmental samples by headspace-trap GC-MS Restricted Access
(Master thesis / Masteroppgave, 2008)
New methods for trace determination of sulphur mustard (HD) by headspace-trap GC-MS have been developed for water and soil samples. As HD is unstable, especially in water, methods for determination of some of the cyclic ...
(Master thesis / Masteroppgave, 2008)
The aim of this project was to investigate molecular imprinted polymers (MIPs) for their potential use in a two-dimensional (2D) capillary liquid chromatography (cLC) system for the simultaneous determination of prostaglandins ...
(Master thesis / Masteroppgave, 2008)
The aggregation and disaggregation caused by temperature and shear rate in aqueous solutions of the thermoresponsive methoxy-poly(ethylene glycol)-block-poly(N-isopropylacrylamide) (MPEG53-b-PNIPAAM113) copolymer was studied ...
(Master thesis / Masteroppgave, 2008)
Ni/SiO2 and Ni/Mg(Al)O catalysts with difference metal loadings have been prepared. The activity, selectivity and stability of supported Ni catalysts for propane dry reforming to syngas reaction were investigated by catalytic ...
(Master thesis / Masteroppgave, 2008)
About 60% of the Chinese population lives in rural areas, where biomass and coal are the main sources of energy for cooking and heating. Indoor air pollution from household fuel burning is a major health concern, responsible ...
(Master thesis / Masteroppgave, 2008)
(Master thesis / Masteroppgave, 2008)
A reversed phase capillary liquid chromatography (cLC) method using large volume injection (column switching) has been developed the determination of low concentration of adenosine in aqueous samples. The injection volume ...
Syntese av høysilika CHA-zeolitter med kontrollert Si/Al-forhold og partikkelstørrelse Restricted Access
(Master thesis / Masteroppgave, 2008)
I denne masteroppgaven er zeolitter med CHA-topologi syntetisert med et Si/Al-forhold fra 14 til 133. Dette fyller et sammensetningsområde som ikke tidligere er rapportert. Kjemiske analyser viser en nær lineær sammenheng ...
(Master thesis / Masteroppgave, 2008)
The stolen Scream painting of Edvard Munch was restored and in the restoration work of the damages on the painting, a glue of the materials which have to be somewhat identical to the glue that Munch used in the Scream ...
Investigations of a Metallic Interconnect Material for High Temperature Proton Conducting Fuel Cells
(Master thesis / Masteroppgave, 2008)
Prestudy of Potential Surface Water Acidification in Northeast China Restricted Access
(Master thesis / Masteroppgave, 2008)
During the past several decades, the amount of SO2 emission in China has steadily increased. The big forest areas in northeast China, located in Hei Longjiang and Ji Lin provinces, are hereby receiving an increasing amount ...
(Master thesis / Masteroppgave, 2008)
(Master thesis / Masteroppgave, 2008)
SAMMENDRAG
(E)- og (Z)-isomere av 5-(brommetylen)furan-2(5H)-oner I, 5-(brommetylen)dihydrofuran-2(3H)-on II og 5-(brommetylen)isobenzofuran-1(3H)-oner III har blitt syntetisert for testing av biologisk aktivitet, med ...
Syntese av Li-holdige filmer med ALCVD Restricted Access
(Master thesis / Masteroppgave, 2008)
(Master thesis / Masteroppgave, 2007)
The work is based on possible protonic transport in LaNb3O9. This ABO3–type perovskite is known to have large voids in the lattice due to many inherent A-site metal vacancies. Acceptor-doping of this material may facilitate ...
(Master thesis / Masteroppgave, 2007)
Sammensetning og egenskaper til DNOM i vann varierer med nedbørfeltets karakter. Vegetasjon, geologi, topografi og klima, særlig temperatur og nedbør virker inn på de
fysiokjemiske egenskapene til DNOM. Hensikten med denne ...
(Master thesis / Masteroppgave, 2007)
ABSTRACT
In forensic toxicology it is important to have a specific and reliable detection of illicit drugs in biological species. At Norwegian Institute of Public Health (NIPH), Department of Drug Analysis, urine samples ...
(Master thesis / Masteroppgave, 2007)
SAMMENDRAG
Plastposer og plastfolier laget fra polyetylen (PE) er ofte gjenstand for bevismateriale i kriminalsaker, enten det er innhentet fra et åsted eller beslaglagt fra personer. Å kunne spore plastmaterialet, ...
(Master thesis / Masteroppgave, 2007)
(Master thesis / Masteroppgave, 2007)
The Norwegian Defence Research Establishment (FFI) is presently developing a mobile laboratory for the identification of chemical warfare agents (CWA) and related compounds. The laboratory will be used in the field, and ...
(Master thesis / Masteroppgave, 2007)
The Methanol-to-Olefins (MTO) process for the production of polymer-grade olefins is a possible step
in the upgrading of natural gas. The preferred MTO catalyst is the microporous silicoaluminophosphate
H-SAPO-34 (CHA ...
(Master thesis / Masteroppgave, 2007)
A novel extraction and clean-up method has been developed for the determination of paralytic shellfish poisoning (PSP) toxins in shellfish samples. Raw shellfish material was extracted with an acidic acetonitrile/water ...
(Master thesis / Masteroppgave, 2007)
(Master thesis / Masteroppgave, 2007)
In the present work, a 2D-capLC-ESI-TOF-MS method for fractionation and separation of peptides in microdialysates is demonstrated. Both comprehensive and quantitative analysis was conducted. The microdialysates samples ...
(Master thesis / Masteroppgave, 2007)
Atmospheric particulate matter samples (PM10) have been collected on quartz and Teflon filters, for 12 days from 16th to 28th of March 2006 on the 4th floor of the University of Science and Technology in Taiyuan, China. ...
(Master thesis / Masteroppgave, 2007)
Antimikrobielle peptider produsert av melkesyrebakterierer en gruppe forbindelser som er av interesse innenfor næringsmiddelindustri og medisin. To-peptidbakteriociner er en gruppe peptider som hører inn under disse. ...
(Master thesis / Masteroppgave, 2006)
The physiological role of the serotonin receptor 5-ht1E is not yet understood, and little is known about its pharmacological effects. An aim of this project has been to establish a new synthetic route to potential 5-ht1E ...
(Master thesis / Masteroppgave, 2006)
The 5-ht1E receptor is one of the least known serotonin receptors. Little has been reported about its pharmacological effects and the physiological role is not known. One of the reasons for this is that no selective agonists ...
(Master thesis / Masteroppgave, 2006)
Industrial development in China has accelerated rapidly in the last few decades. This has led to a range of environmental problems. Deposition of trace metals to forest ecosystems via the atmosphere is a potential regional ...
(Master thesis / Masteroppgave, 2006)
Okadaic acid (OA) and dinophysistoxins (DTXs) are a group of polyethers known to sometimes contaminate filter-feeding shellfish that cause symptoms classified as diarrhetic shellfish poisoning. The algae Dinophysis acuta ...
(Master thesis / Masteroppgave, 2006)
Kvikksølv har en rekke ugunstige effekter på menneskelig helse. Dette har de siste tiårene ført til at det har blitt gjennomført reduksjoner i kvikksølvutslipp. Det meste av mobilt kvikksølv i dag er gjort mobilt av ...
(Master thesis / Masteroppgave, 2006)
Sammendrag
Oppgaven har fokusert på synteseteknikker for fremstilling av monodisperse frittstående nanokuber av Co3O4 og deponering av oksidiske materialer på nanokrystaller med ALCVD (Atomic Layer Chemical Vapour ...
(Master thesis / Masteroppgave, 2006)
In this work, Structural, dynamical, and rheological properties of aqueous solutions of hydroxyethylcellulose (HEC) derivatives in the presence of ionic surfactants or with cyclodextrin monomers have been investigated. The ...
(Master thesis / Masteroppgave, 2006)
The SISAK (i.e. Short-lived Isotope Studied by the AKufve -technique) system was used for investigation of the reaction between osmium tetroxide and NaOH as a model for chemical study of hassium. The result was a two- stage ...
(Master thesis / Masteroppgave, 2006)
Abstract
Monolithic poly (styrene-co-divinylbenzene) capillary columns were prepared by free radical cross-linking copolymerisation of styrene and divinylbenzene monomers in the presence of a mixture of tetrahydrofuran ...
(Master thesis / Masteroppgave, 2006)
Det er gjennomført en kvantekjemisk undersøkelse av rutherfordiumsulfatkompleksene som dannes i vannfasen i seperasjonsystemet SISAK. De tre mulige sulfatkompleksene [M(SO4)(H2O)6]2+, [M(SO4)2(H2O)4] og [M(SO4)3(H2O)2]2-, ...
(Master thesis / Masteroppgave, 2006)
Agelasiner er 7,9-dialkylerte puriniumsalter, som først bøle isolert fra marine svamper av Agelas familien.
Svamper og andre marine organismer er viktige kilder til molekyler med interessante biologiske effekter. Bakterier ...
(Master thesis / Masteroppgave, 2006)
(Master thesis / Masteroppgave, 2006)
In the present study, an analytical method for determination of hydroxylated polychlorinated biphenyls (OH-PCBs) and polybrominated diphenyl ethers (OH-PBDEs) and a selection of PCBs, PBDEs and pesticides in biological ...
(Master thesis / Masteroppgave, 2006)
Low molecular weight homopolymers of methylmethacrylate and tertbutylmethacrylate were polymerized by the controlled process of ATRP- Atom Transfer Radical Polymerization.
The procedure for initiation of an ATRP reaction ...
(Master thesis / Masteroppgave, 2006)
Abstract part I:
Investigation of the effect of column temperature in capillary reversed phase high performance liquid chromatography of proteins
The effect of column temperature on separation of proteins in reversed ...
(Master thesis / Masteroppgave, 2006)
Metalorganic frameworks (MOFs) are a new type of compounds which have been intensely investigated during the last few years. They have been synthesized using a wide variety of metals and ligands constructing a vast number ...
(Master thesis / Masteroppgave, 2006)
I dette arbeidet skulle interaksjoner mellom den vannløselige delen av naturlig organisk materiale (DNOM) og kvikksølv (Hg2+) studeres. Det ble brukt gel-kromatografi (Sephadex™-gel G-25 medium) for å fraksjonere fire ...
(Master thesis / Masteroppgave, 2006)
Sammendrag
Koordinasjonspolymere (CPO; coordination polymer), metalorganiske nettverk forbindelser (MOF; metal organic framework structure) og uorganiske-organiske hybridforbindelser utgjør fort voksende grupper av nye ...
(Master thesis / Masteroppgave, 2006)
Sammendrag:
Arbeidet konsentrerer seg om syntetisering av sinkfosfater med fiberzeolitt- struktur og karakterisering av disse.
Siden 1990-tallet har det vært utført et betydelig forskningsarbeid for å samle inn informasjon ...
(Master thesis / Masteroppgave, 2006)
Hensikten med denne oppgaven var å bestemme kvikksølv i jord i et nedbørfelt.
Kvikksølv er en langtransportert luftforurensing som slippes ut fra antropogene så vel som naturlige kilder. Kvikksølv på elementær form blir ...
(Master thesis / Masteroppgave, 2005)
(Master thesis / Masteroppgave, 2005)
Soil samples from the Norwegian catchment of Langtjern were analysed. These samples were air-dried before determining cations concentrations applying the ICP-AES technique and pH measurements. The results were used to ...
(Master thesis / Masteroppgave, 2005)
There are currently no antidepressant drugs available with the desired efficacy, onset of action, or absence of side effects. Milnacipran is a commercially available antidepressant drug that shows affinity for the serotonin ...
(Master thesis / Masteroppgave, 2005)
Abstract
The work in this master thesis consists of two parts: The first part is related to analyses of organic and elemental carbon in particulate matter (PM ) in samples collected on glass fiber filters in Taiyuan city, ...
(Master thesis / Masteroppgave, 2005)
Organokatalyse er et viktig og relativt nytt felt innen organisk syntetisk kjemi. Denne formen for syntese krever katalysatorer med ønsket effekt på selektivitet og reaksjonshastighet. Man ønsker å vite noe om disse effektene ...
(Master thesis / Masteroppgave, 2004)
Målet med oppgaven var å utvikle nye syntese¬metoder for 1-aryl-2-azasyklopropaner. Disse kan ses på som låste analoger av nevrotransmittere og er interessante fordi de kan ha¬ CNS-aktivitet. Metyl 1-aryl-2-(1,3-dioksois ...