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Degradation studies on polydimethylsiloxane
(Åbo Akademi, 2019) -
Determination of acetate in wine : comparison between ion chromatography and ion-selective electrodes
(Åbo Akademi, 2018)This thesis was carried out in the Laboratory of Analytical Chemistry at Åbo Akademi University in collaboration with the Analytical Chemistry Laboratory at Tartu University. This work was done under the supervision of ... -
Determination of benzoate in cranberry and lingonberry using solid-contact ion-selective electrode; comparison with ion chromatography
(2021)The purpose of this thesis was to develop the solid-contact ion-selective electrodes and to characterize them as benzoate-selective electrodes. The developed electrodes were then applied for the determination of benzoate ... -
Development of electronic nose using chemiresistive percolation network gas sensor based on conducting polymers
(2023)A method of producing poly(3,4-ethylenedioxythiophene) (PEDOT) explosive percolation (EP) gas sensor with ultra-fast response and recovery time has been developed by Robiños et. al. Due to its novelty full understanding ... -
Effekten av jonkoncentrationen på den kemiska beständigheten på bioaktivt glas i ett kaskadreaktorsystem under kontinuerlig genomströmning
(Åbo Akademi, 2018)Embargo 8.12.2019 asti -
Electrochemical reduction and simultaneous N-doping of nanographene oxide in acetonitrile for DNA-selective biosensors
(Åbo Akademi, 2019)Graphene and its derivatives have been a focus of research for a number of years due to their enhanced surface area and electrical conductivity making them a viable candidate for electrochemical sensing. Previously, the ... -
Elektrospinning av sol-gel-baserat bioaktivt glas och polymeren polylaktid
(2022)Glas med vissa sammansättningar kan binda sig kemiskt med levande vävnader i människokroppen. Dessa glas kallas för bioaktiva glas. Detta fenomen om direkt bindning mellan dessa två materialtyper upptäcktes av professor ... -
Evaluation of Calculative Tools Intended for the Prediction of Liquid Hydrocarbon Viscosity
(Åbo Akademi, 2020)The main purpose of this work was to comprehend and promulgate the process of predicting the kinematic viscosity of liquid hydrocarbon mixtures using empirical correlations and mixing rules. The performance of the most ... -
Exfoliering av grafit i cellulosa nanokristaller (CNC) och framställning av elektriskt ledande grafen-CNC-kompositfilmer
(2021)I denna pro gradu-avhandling har grafen-nanocellulosa(CNC)-kompositmaterial tillverkats av högkoncentrerade grafen-CNC-dispersioner genom sprejning med airbrushpenna på glassubstrat. Metoden som använts för att framställa ... -
Flow-Through Cell for Ion-selective Electrodes
(2023)This research work describes a novel flow-through all-solid-state potentiometric device that consists of solid-contact ion-selective electrodes and a solid-state planar reference electrode. The device is capable of measuring ... -
Functionality of solid-contact ISEs with physically damaged ion-selective membranes : a comparison between potentiometric, coulometric and amperometric methods
(2021)In this thesis, a novel ion-to-electron signal transduction method was applied for checking the functionality of chloride and potassium solid-contact ISEs with physically damaged ion-selective membranes (ISMs). The ... -
GC-MS/SIM and HPLC method development for monitoring polydimethylsiloxane and its degradation products
(2022)Polydimethylsiloxane (PDMS) is an abundant and highly persistent polymer used in many applications. One of these applications is as an antifoaming agent in the kraft pulping process. This chemical pulping process generates ... -
Graphene-Cellulose Nanocrystals Composite as Electrode Material for Electrochemical Double-Layer Capacitors
(2023)It has been a constant challenge to develop more sustainable and better-performing supercapacitors that meet the large-scale demands of hybrid electric vehicles, wearable microelectronics, and grid storage in the future. ... -
Interaktioner mellan kaliumsalter och manganbaserade bäddmaterial i kemisk cirkulärförbränning i reducerande förhållanden
(Åbo Akademi, 2019)I detta arbete studerades interaktionen av fyra olika kaliumsalter, KCl, K2CO3, K2SO4 och KH2PO4 med tre olika mangankällor, Hausmannit, Kalcium-mangan perovskit och en manganrik malm från Sibelco A/S, under reducerande ... -
Karakterisering av polymerytor och deras tillämpning inom mikrobiologi
(Åbo Akademi, 2020)Bakteriecellers adhesion och tillväxt på olika ytor kan ge upphov till en mängd olika problem. För att det ska vara lättare att bekämpa bakterieadhesionen är det viktigt att faktorer som påverkar adhesionen är kända. Det ... -
Leaching of Phosphorus from Biomass Ash and Model Chemicals
(2024)Phosphorus is an important raw material used mainly in fertilizers, with population growth increasing the demand. Sustainable sources of phosphorus are investigated to prevent the depletion of phosphorus reservoirs. While ... -
Method development for the analysis of polydimethylsiloxane in bio-oils
(2021)The chemistry of wood is quite complex. Wood consists of several components, such as cellulose, hemicelluloses, lignin, and extractives, which are all important during pulping. The components are either used as the final ...