Search for dissertations about: "Acoustic Levitation"
Showing result 1 - 5 of 6 swedish dissertations containing the words Acoustic Levitation.
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1. Contact-free surface chemistry with acoustic levitation
Abstract : An ultrasonic acoustic levitator is a device that allows the implementation of contact-free studies by generating an airborne acoustic pressure field, capable of trapping, in mid-air, small volume samples (.... READ MORE
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2. Sound Field Design for Transducer Array-Based Acoustic Levitation
Abstract : Acoustic levitation is a technique where sound waves are used to hold an object at a designated position, suspending it against other external forces and keeping it stable in the desired position. Transducer arrays are an arrangement of many loudspeaker elements, tuned such that the array creates a sound field that is too complicated for the individual elements to produce on their own. READ MORE
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3. Miniaturised Bioanalytical Chemistry in Acoustically Levitated Droplets
Abstract : Fuelled by the current demands of the biological sciences, there is today a growing interest in microscale analysis. Miniaturisation of analytical instruments has become a long-standing trend. Miniaturisation offers several advantages, including rapid separation times, high performance and throughput, reduced costs, etc. READ MORE
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4. Sensitivity and selectivity studies in capillary electrophoresis
Abstract : Capillary electrophoresis is characterised by high separation efficiency, applicability to a wide range of compounds, small sample and solvent consumption and simple instrumentation. To improve sensitivity using on-line absorbance detectors, which are hampered by the short optical path length, sample volumes in the microlitre range were concentrated to nanolitre volumes either off-line or on-line. READ MORE
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5. Applications of laser spectroscopy to analytical chemistry, environmental monitoring and medicine
Abstract : In this thesis spectroscopic techniques have been used in the fields of analytical chemistry, environmental and medical applications. In analytical chemistry, laser induced fluorescence was used to image the separation of substances during capillary electrophoresis. READ MORE