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| CHIM0007-2 | Analytical chemistry I (chemical methods)
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| Duration : | 40h Th, 80h Pr, 20h QA Sess. |
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| Credits/ECTS : |
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| Holder(s) : | Gauthier Eppe |
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| Language : | French language |
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| Course contents : | The course is divided into two distinct parts. In the first, the balanced reactions (acid-bases, redox, complexation, precipitation) are treated in terms of exchange of particles between donors and acceptors, thus unifying the concepts used in the study of the various reactions in aqueous solution. The next step consists in establishing a relationship between the variations of the conditional constants (acidity constants, formation constants of complex, normal potentials, exchange and partition constants) and the conditions of the medium (pH, ionic strength, complexing agent). These concepts being acquired, the implementation and the quantitative application of these various reactions with the purpose of analysis (titrimetry and gravimetry, primarily) are considered while insisting on the precision and exactitude which one should expect. The second part of the course treats on the conditioning of a sample which often constitutes an essential step for the analysis of its components: the solubilization by wet or dry processes, the separation of unwanted elements. Liquid-liquid extraction and chromatographic processes are then fully considered from a theoretical and experimental point of view. |
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| Course objective : | To understand, interpret and apply the various reaction steps of an analysis protocol in order to obtain the best performances of exactitude and precision are the top priority of the course. This implies a perfect knowledge of the chemical reactions which it implements. |
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| Prerequisites : | The course of general chemistry of first bacchelor degree of Prof J.F.Desreux. |
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| Workshops : | See below |
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| Organization : | The first part of the course (26 H), taakes place at the first half of the year, the second part (14 H) in the second semester. The lessons (two hours) are illustrated by several experimental demonstrations or data-processing tools. An interruption from 5 to 10 minutes is provided at about the middle of each lesson. The rehearsals are important from several points of view: they illustrate the course and contribute to its understanding thanks to a series of problems and exercises on the various chapters, while insisting particularly on acid-base and complexometric titrations which constitute, often, the material assimilable with more difficulty by the students. The laboratory work starts at the beginning of the second semester; the purpose are primarily to initiate the students with the particular requirements of the chemical analysis: not to lose anything, not to contaminate, care, cleanliness and method, strict respect of the experimental protocols... The reliability, precision and exactitude of an analysis result depend, of course, on the choice of the method but also on the dexterity and the competence of the experimentalist. |
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| Written notes : | The course notes as well as the handbook of laboratory work are available at the store "Point of view" (opposite to the large amphitheatres). No particular material (except the apron) is necessary for the laboratories. As supplementary information, the consultation of the following works is recommended: - ETUDE ANALYTIQUE DES REACTIONS CHIMIQUES DANS L'EAU by J.Y. GAL (TEC et DOC-LAVOISIER, Paris 1989)
- ANALYTICAL CHEMISTRY by D.A.SKOOG, D.M. WEST and F.J HOLLER. |
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| Assessment : | A general interrogation with possible exemption is organized in January and relies on the first part of the course. Three scores are allotted to laboratories and concern: the sum of the points of N manipulations/n, an interrogation and the test of laboratory. The examination in june is oral but the student has at least one hour for preparation. The overall rating takes into account the results of the general interrogation (if it is successful), the laboratory work and the final examination. Note: when the score of the oral examination is lower than 10, the points of the laboratory works are not taken into account. |
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