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Lecturer(s)
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Švancara Ivan, prof. Ing. Dr.
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Mikysek Tomáš, doc. Ing. Ph.D.
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Course content
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Electronalytical Chemistry (EACH) - Basic principles and definitions ... Electric and electrode potentials, ohmic resistence, electric current, electric charge. Electrical double layer. Character of electrode-solution interface. Electrochemistry vs. electroanalysis - Currentless measurements ... Nernst equation and its description. Thermodynamics and potentials of the electrode cell. Potentiometry: Classification of electrodes: indicatory and reference, of I. and II. kind e., redox- and indifferent e., ion-selective electrodes (ISEs), pH-sensing with glass electrode and other pH-sensors. - Measurements with the current flow Basic definitions: Faradic and non-faradic currents, electrolysis, "E-t" and "I-E" curves (polarographic waves and voltammetric peaks). Kinetics of redox electrode reactions, overpotential, standard rate constant, Butler-Volmer equation, charge transfer coefficient, exchange current, Tafel equation and diagram. Mass transfer by migration and diffusion, Fick laws. Convective transport(s) in stirred solutions and in flowing streams. - Electroanalytical techniques ... (Heyrovsky) polarography. Linear-sweep and cyclic voltammetry. Alternating-current, differential-pulse, and square-wave voltammetry. Coulometry Faraday law and and its description, two types of coulometry and their applications (evaluation of the number of electrons, coulometric titrations with electrogenerated titrants). Conductometry Ion mobility and conductivity, ion conductivity in solutions, direct measurements and conductometric titrations, including coupling with potenciometric indication. - Electrochemical instrumentation ... Working electrodes: DME, HMDE, MFE, Pt-, GCE, CPE. Reference electrodes. Electrochemical analyzers and other experimental equipment. - Selected special topics ... Electrochemical stripping analysis (ESA), flow-injection and sequential injection analysis (FIA, SIA), detection with amperometric (enzymatic) biosensors. Environmental, food, pharmaceutical and clinical electroanalysis.
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Learning activities and teaching methods
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Monologic (reading, lecture, briefing), Work with text (with textbook, with book)
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Learning outcomes
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Introducing the students to the electrochemistry and electroanalysis, namely: electric phenomena and related processes at the phase interfaces, with emphasis on analytical applications in currentless measurements and experiments with electric current flow. The subject reflects modern trends, such as electrochemical stripping analysis, biosensors, environmental and green analysis, as well as advanced analysis of foods and pharmaceuticals.
Graduates of the course will gain a basic overview on electrochemical measurements and their possibilities in modern instrumental analysis. They will also introduce themselves to the respective specialized literature and improve their scientific English.
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Prerequisites
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The subject requires the basic knowledge and skills on instrumental and physical chemistry, as well as work with chemical literature. Obvious is good knowledge of English language, both in written and spoken form.
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Assessment methods and criteria
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Oral examination, Written examination
The subject requires basic knowledge of electroanalytical and physical chemistry (acquired in the country of origin); written test - 70% of exam, oral examination - 30% of exam
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Recommended literature
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Koryta J. et al. Electrochemistry. Methuen (MA, USA). 1970.
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Scholz F., Ed. Electrochemical Methods. Berlin. 2010.
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Wang J. Analytical Electrochemistry. New York, 2000.
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