Sökning: "Sequential injection"

Visar resultat 1 - 5 av 13 avhandlingar innehållade orden Sequential injection.

  1. 1. Flow injection systems for process analytical chemistry

    Författare :Ingrid Lukkari; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Flow injection; Sequential injection; Process analytical chemistry; Multivariate calibration; Sensor injection; Gas-diffusion; Sample clean-up;

    Sammanfattning : Flow injection systems have great potential for sample handling and analysis in process analytical chemistry. The flexibility and versatility of flow injection manifolds can he utilized in specific applications of sample conditioning and analysis. LÄS MER

  3. 2. Bioelectronic Nanosensor Devices for Environmental and Biomedical Analysis

    Författare :Klas Risveden; Tillämpad biokemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Regional Ion Sensitive Field Effect Transistor; Region Ion Sensitive Field Effect Transistor; RISFET; Conducting channel; Bioelectronic Nanosensor; Bioelectronic; Biosensor; Nanosensor; Chemical Sensor; Sensor; Semiconductor sensor; Single molecule trapping; Scaling; Protein trapping; Nanoelectronics; Lab-on-a-chip; pico-ammeter; Nanobiosensor; Sample Applicator; Sequential Batch Analysis; Sequential Batch Analysis System; SBAS; Nanowire; Branched nanowire structure; Nanotree; Nanorod; Nano processing; Micro processing; Electron Beam Lithography; EBL; UV-lithography; Molecular Imprinting; DUV-lithography; Moleculary Imprinted Polymers; MIP; Biomimetics; QCM; Biomimetic sensor; Quartz Crystal Microbalance; QCM-D; Nanoparticles; Acetylcholine esterase; Glucose oxidase; Glucose; Gluconolactone; Propranolol; Gluconate; Carbofuran; Neurotoxic; Environmental analysis; Biomedical Analysis; Biotechnology; Medicine; Pesticide; Food Technology; Analyis; Flow Injection Analysis; FIA; Scanning Probe Microscopy; Scanning Kelvin Probe Microscopy; SPM; KPM; AFM; SKM; KPFM; SKPM; Nanostructures.; Atomic Force Microscopy; KFM;

    Sammanfattning : A new type of Bioelectronic Nanosensor Device with potential applications in medicine,biotechnology and environmental analysis was designed. The nanosensor is based on RISFET (Regional Ion Sensitive Field Effect Transistor) technology. LÄS MER

  4. 3. Development of an Ultrasensitive Capacitive DNA-sensor: A promising tool towards microbial diagnostics

    Författare :Ally Mahadhy; Bioteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Capacitive DNA-sensor; Enterobacteriaceae; mecA gene; Methicillin resistance; automated sequential injection analysis; sandwichhybridization; elevated temperature; polytyramine;

    Sammanfattning : Fast and sensitive detection of pathogenic microbial cells is a highly important task in medical diagnostics, environmental analysis and evaluation of food safety. Accordingly, the idea of microorganism identification by the recognition of specific DNA sequence using electrochemical technique is one of the leading researches in the development of diagnostic devices. LÄS MER

  5. 4. Separation of Pharmaceuticals by Capillary Electrophoresis using Partial Filling and Multiple-injections

    Författare :Henrik Lodén; Curt Pettersson; Torbjörn Arvidsson; Ahmad Amini; Morgan Stefansson; Uppsala universitet; []
    Nyckelord :Capillary Coating; Chiral Separation; Enantiomers; Mass-spectrometric Detection; Method Validation; Multiple-injection Capillary Zone Electrophoresis; Non-aqueous Capillary Electrophoresis; Organic Solvents; Pharmaceutical Analysis; Quantitative Analysis;

    Sammanfattning : Different multiple-injection methodologies and the partial filling technique (PFT) have been utilized for separation of pharmaceuticals by capillary elec-trophoresis. In multiple-injection capillary zone electrophoresis (MICZE), the samples and all standards, used for construction of the calibration curve, are analyzed within a single run. LÄS MER

  7. 5. Imaging the tumor microenvironment : the dynamics and modification of hypoxia

    Författare :Anna Ljungkvist; Peggy L. Olive; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Radiology; tumor microenvironment; double hypoxic marker method; proliferation; hypoxia; hypoxic half-life; Radiologisk forskning; Radiological research; Radiologisk forskning; diagnostisk radiologi; Diagnostic Radiology;

    Sammanfattning : The tumor vasculature is poor and heterogeneous which may result in inadequate oxygenation and changed energy status. In addition the balance between cell proliferation and the rate of cell death is disturbed, which results in tumor growth. LÄS MER