 | | |
| CHIM0007-2 | Analytical chemistry I (chemical methods)
|
|
| Duration : | 40h Th, 80h Pr, 20h QA Sess. |
|
| Number of credits : |
|
|
| Lecturer : | Gauthier Eppe |
|
Language(s) of instruction :
|
| French language |
|
Organisation and examination :
|
| All year long, with partial in January |
|
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 accuracy which one should expect. The second part of the course introduces basic statistics in analytical chemistry and quality assurance and quality control concepts. Then, 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 introduction to separation methods. We discuss the basic principles of chromatographic separation mechanism. We will detail the different parameters that characterize a chromatographic separation. We discuss the main types of chromatography:Gas chromatography
Liquid chromatography
Ionic chromatography
Size exclusion chromatography |
|
Learning outcomes of the course :
|
| To understand, interpret and apply the various reaction steps of an analysis protocol in order to obtain the best performances in terms of accuracy and precision. They are the major objectives of the course. This implies a good knowledge of the chemical reactions which it implements. |
|
Prerequisites and co-requisites/ Recommended optional programme components :
|
| The course of general chemistry in 1st bachelor |
|
Planned learning activities and teaching methods :
|
| See below |
|
Mode of delivery (face-to-face ; distance-learning) :
|
| The first part of the course (26 H), takes 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 accuracy of an analytical result depend, of course, in the selection of the method but also on the dexterity and the skills of the analyst. |
|
Recommended or required readings :
|
| The course notes as well as the handbook of laboratory work are available at the store "Point de Vue".
A copy of the powerpoint slides are also available.
No particular material (except the apron and safety glasses) 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. |
|
Assessment methods and criteria :
|
| A general interrogation with possible exemption (10/20) 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), and the final examination for 70%: the laboratory work for 30% . Note: when the score of the oral examination is lower than 10, the points of the laboratory works are not taken into account. |
|
Work placement(s) :
|
| |
|
Organizational remarks :
|
| |
|
Contacts :
|
| Pr. Gauthier Eppe
Institut de Chimie, Bat B6c, Local 1/9A
Tel. +32-4-366.3422
e-mail. g.eppe@ulg.ac.be |
|
|
| Items online : |
|
| Book of practical work |
| notes de TP 2014 |
|
|
|
| powerpoint presentations |
| analytical chemistry: chemical methods (1st part) |
|
|
|
| powerpoint presentations |
| Analytical chemistry : Separation methods (2nd part) |
|
|
