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Electrochemical analytical devices for thick-film sensors measurement
Pytlíček, Zdeněk ; Adámek, Martin (referee) ; Prášek, Jan (advisor)
This work covers an area of electrochemical analytical systems for trace determination of dissolved species in water solutions with use of thick-film sensors. Several types of common electrochemical devices including special ones used for sensors are described and compared in this work. The main goal of this work is to find the suitable electrochemical arrangement with the best, reliable and reproducible current response of the thick film sensors. A new electrochemical arrangement, which should eliminate disadvantages of common devices and unite their advantages with optimization for thick film sensors, is designed here. For better current response of the sensor, suitable improvements and optimization of the new electrochemical arrangement prototype were done in this work. All measurements were done on standard electrochemical couple of potassium ferro-ferricyanide using the cyclic voltammetry. In the end of this work, all the devices are compared in term of their features and presumptions for the best detection limit of the thick film sensors.
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Electrochemical detection of purine metabolites and their isosters
Spružinová, Petra ; Vrána, Oldřich (referee) ; Jelen,, František (advisor)
Electrochemical analysis of some important purine derivatives from catabolic cycle of purine, and allantoin is presented. Determination is based on the forming of purine Cu (I) complex on the mercury or carbon paste electrode. Electrochemical stripping by suitable change of potential results in voltammetric signal, which reflects purine concentration in the sample. Procedure was optimalized and calibration curves were measured.
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Electrochemical analytical devices for thick-film sensors measurement
Pytlíček, Zdeněk ; Adámek, Martin (referee) ; Prášek, Jan (advisor)
This work covers an area of electrochemical analytical systems for trace determination of dissolved species in water solutions with use of thick-film sensors. Several types of common electrochemical devices including special ones used for sensors are described and compared in this work. The main goal of this work is to find the suitable electrochemical arrangement with the best, reliable and reproducible current response of the thick film sensors. A new electrochemical arrangement, which should eliminate disadvantages of common devices and unite their advantages with optimization for thick film sensors, is designed here. For better current response of the sensor, suitable improvements and optimization of the new electrochemical arrangement prototype were done in this work. All measurements were done on standard electrochemical couple of potassium ferro-ferricyanide using the cyclic voltammetry. In the end of this work, all the devices are compared in term of their features and presumptions for the best detection limit of the thick film sensors.
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|
|
Electrochemical detection of purine metabolites and their isosters
Spružinová, Petra ; Vrána, Oldřich (referee) ; Jelen,, František (advisor)
Electrochemical analysis of some important purine derivatives from catabolic cycle of purine, and allantoin is presented. Determination is based on the forming of purine Cu (I) complex on the mercury or carbon paste electrode. Electrochemical stripping by suitable change of potential results in voltammetric signal, which reflects purine concentration in the sample. Procedure was optimalized and calibration curves were measured.
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