Institutt for kjemi: Nye registreringer
Viser treff 561-580 av 1395
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Total synthesis of Dothideopyrone E and Dothideopyone F
(Master thesis, 2021)Dette arbeidet er relatert til syntesen av to naturprodukter, dothideopyrone E og F. Ulike veier har blitt prøvd for å syntetisere disse molekylene. I de første testene ble en Carreira-alkynylering utført for å oppnå gode ... -
Occurrence of Bisphenols and Benzophenone UV Filters in White-Tailed Eagles (Haliaeetus albicilla) from Smøla, Norway
(Journal article; Peer reviewed, 2021)There is a growing concern about the occurrence of bisphenols and benzophenone UV filters in natural ecosystems, while data are limited regarding their actual occurrence in wildlife species, especially in raptors. In this ... -
Accelerated hydrolysis method for producing partially degraded polyester microplastic fiber reference materials
(Peer reviewed; Journal article, 2020)Microplastic fibers (MPFs) from textiles significantly contribute to the microplastic (MP) load in many environmental matrices and have been shown to negatively impact the organisms therein. Most fate and effect studies ... -
A simple hanging mercury drop electrode
(Peer reviewed; Journal article, 2000)A device producing reproducible hanging mercury drops at the end of a glass capillary is described. Mercury flow through th capillary is controlled by means of a closing needle actuated by an electromagnetic relay. The ... -
Trace metal mobility in sub-seabed sediments by CO2 seepage under high-pressure conditions
(Peer reviewed; Journal article, 2020)Carbon capture and storage (CCS) is the third contributor to cumulative carbon emission reductions required by the second half of this century. Although this is a promising technology for reducing atmospheric CO2, it is ... -
Catalytic cathodic stripping voltammetry of oxidized glutathione at a hanging mercury drop electrode in the presence of nickel ion
(Peer reviewed; Journal article, 1995)Oxidized glutathione (GSSG) can be determined after previous accumulation on the HMDE at E > −0.2 V (vs. the reference electrode). GSH is formed during the accumulation, possibly by a mercury-ion-assisted hydrolytic ... -
Moving forward in microplastic research: A Norwegian perspective
(Peer reviewed; Journal article, 2021)Given the increasing attention on the occurrence of microplastics in the environment, and the potential envi-ronmental threats they pose, there is a need for researchers to move quickly from basic understanding to applied ... -
The Development of Polydimethysiloxane/ZnO–GO Antifouling Coatings
(Peer reviewed; Journal article, 2021)The development of antifouling coating for sensor is desirable because the biofilm can shorten sensor’s life and cause inaccurate reading. In this study, a facile one-pot reaction was used to synthesized ZnO–graphene oxide ... -
Chemical Analysis and Anthelmintic Activity Against Teladorsagia Circumcincta of Nordic Bark Extracts In vitro
(Peer reviewed; Journal article, 2021)Helminth parasitic infections are common in small ruminants in Norway; infection is usually treated with anthelmintic drugs, but anthelmintic resistance is an increasing problem. It is necessary to identify strategies to ... -
Rapid determination of thyroid hormones in blood plasma from Glaucous gulls and Baikal seals by HybridSPE®-LC-MS/MS
(Peer reviewed; Journal article, 2021)A rapid hybrid solid phase extraction (HybridSPE®) protocol tailored to liquid chromatography–electrospray ionization tandem mass spectrometry (LC–ESI–MS/MS) analysis, was developed for the determination of four thyroid ... -
Massively Parallel Arrays of Size-Controlled Metallic Nanogaps with Gap-Widths Down to the Sub-3-nm Level
(Peer reviewed; Journal article, 2021)Metallic nanogaps (MNGs) are fundamental components of nanoscale photonic and electronic devices. However, the lack of reproducible, high-yield fabrication methods with nanometric control over the gap-size has hindered ... -
Seeding as a start-up strategy for improving the acclimation of freshwater nitrifying bioreactors to salinity stress
(Peer reviewed; Journal article, 2021)Recirculating aquaculture systems (RAS) for anadromous fish such as salmonids often require salinity changes during the production cycle. However, high or variable salinity can disrupt the biological nitrification process, ... -
Cerman: Software for simulating streamer propagation in dielectric liquids based on the Townsend–Meek criterion
(Peer reviewed; Journal article, 2021)We present a software to simulate the propagation of positive streamers in dielectric liquids. Such liquids are commonly used for electric insulation of high-power equipment. We simulate electrical breakdown in a needle–plane ... -
Temporal dynamics of carbon sequestration in coastal North Atlantic fjord system as seen through dissolved organic matter characterisation
(Peer reviewed; Journal article, 2021)Fjord systems in higher latitudes are unique coastal water ecosystems that facilitate the study of dissolved organic matter (DOM) dynamics from surface to deeper waters. The current work was undertaken in the Trondheim ... -
Numerical modelling of distinct ice lenses in frost heave
(Peer reviewed; Journal article, 2021)Frost heave happens when three conditions coincide: the temperature is below the normal freezing point of bulk water, the sub-cooled water is connected to a water reservoir, and the mechanical conditions of the soil allows ... -
Anomalous diffusion in systems with concentration-dependent diffusivity: exact solutions and particle simulations
(Journal article; Peer reviewed, 2020)We explore the anomalous diffusion that may arise as a result of a concentration dependent diffusivity. The diffusivity is taken to be a power law in the concentration, and from exact analytical solutions we show that the ... -
Nanothermodynamic Description and Molecular Simulation of a Single-Phase Fluid in a Slit Pore
(Peer reviewed; Journal article, 2021)We have described for the first time the thermodynamic state of a highly confined single-phase and single-component fluid in a slit pore using Hill’s thermodynamics of small systems. Hill’s theory has been named ... -
UV degradation of natural and synthetic microfibers causes fragmentation and release of polymer degradation products and chemical additives
(Peer reviewed; Journal article, 2020)A high proportion of the total microplastic (MP) load in the marine environment has been identified as microfibers (MFs), with polyester (PET) and polyamide (PA) typically found in the highest abundance. The potential for ... -
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 ...