Essays about: "analytical chemistry"

Showing result 16 - 20 of 46 essays containing the words analytical chemistry.

  1. 16. Pressure-based clog detection in SPE-columns

    University essay from Uppsala universitet/Institutionen för elektroteknik

    Author : Elias Johansson; [2021]
    Keywords : Solid-phase extraction; SPE; Biotage; Extrahera; Analytical chemistry; Life-science; Medtech; Analytisk kemi; Naturvetenskap; Kemi;

    Abstract : The concept of integrated sensors in the Biotage® Extrahera™ system to perform live-monitoring of pressure inside SPE-columns is investigated. A test-rig containing the components necessary to simulate the pressure-cycle in the system is constructed and a printed-circuit board assembly is designed and implemented into its 24-column format. READ MORE

  3. 17. Dispersed bio-based binders as drop-in solution for non-woven industry

    University essay from KTH/Fiber- och polymerteknologi

    Author : Emma Ingo; [2021]
    Keywords : Dispersion; Modified Biopolymers; Non-Woven; Binders; Green Chemistry; Dispersion; Modifierade Biopolymerer; Non-Woven; Bindemedel; Grön Kemi;

    Abstract : Sammanfattning på svenska: Målet med projektet var att utveckla ett system av disperserade bindemedel för non-wovenindustrin som inte förutsätter omfattande förändringar i befintliga processer. Bindemedlet ska vara biobaserat, bionedbrytbart och endast bestå av byggstenar som är matkontaktsgodkända av FDA och BFR. READ MORE

  4. 18. The impact of various chromatographic conditions on the separation of modified and unmodified oligonucleotides

    University essay from Karlstads universitet

    Author : Lewis Frazer; [2021]
    Keywords : Oligonucleotide; Modified oligonucleotides; Ion-pair chromatography; Chromatography; Analytical chemistry; TEAA; DBA; Chemistry; Oligonukleotid; Modifierade oligonukleotider; Jonpars kromatografi; Kromatografi; Analytisk kemi; TEAA; DBA; Kemi;

    Abstract : In this study, the effects of certain chromatographic conditions on various modified and unmodified oligonucleotides were investigated. At the forefront of this study was the investigation of a new Ion-pair Reversed-phase liquid chromatography (IP-RPLC) method, that had the potential to replace a previously established triethylammonium acetate (TEAA) IP-RPLC method developed for oligonucleotide separations. READ MORE

  5. 19. Electrically Modified Quartz Crystal Microbalance to Study Surface Chemistry Using Plasma Electrons as Reducing Agents

    University essay from Linköpings universitet/Kemi

    Author : Pentti Niiranen; [2021]
    Keywords : Plasma enhanced chemical vapor deposition; PECVD; Quartz crystal microbalance; QCM;

    Abstract : Metallic films are important in various applications, such as electric devices where it can act as contacts. In electrical devices, the substrate typically consists of silicon dioxide (SiO2) which is a temperature-sensitive substrate. READ MORE

  6. 20. Electrical wiring of Shewanella oneidensis MR-1 with osmium polymers of different redox potentials

    University essay from Lunds universitet/Kemiska institutionen; Lunds universitet/Beräkningskemi

    Author : Laleh Tavakoli; [2021]
    Keywords : Analytical Chemistry; Bio-Analytical Chemistry; Electrochemistry; Bacteria; Osmium redox polymers; Shewanella Oneidensis MR-1; electrode; Microbial electrosynthesis; Electron transfer; Chemistry;

    Abstract : The results of studies have shown that the several applications such as microbial electrochemical system (MES), bio-electrochemical systems (BESs) and production of beneficial chemicals are due to electrochemical connection among electrodes and microorganisms. The following two factors are important in choosing the microbe mediated electrochemical biosensors: I) Binding of bacterial cells on the electrode, II) Efficient electron transfer (EET) between the electrode and the cells by a mediator. READ MORE