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Electroanalytical Chemistry

Code: 107980
Credits: 6
2026/2027
Degree programme Type Course
Chemistry OB 2

Contact lecturer

Name :
Mireia Baeza Labat
Email :
mariadelmar.baeza@uab.cat

Teaching staff

Francisco Cespedes Mulero
Raquel Montes Martinez

Group languages

You can consult this information at the end of the document.

Prerequisites

The subject of Fundamentals of Chemistry II must be approved.

Objectives

In this subject, students must acquire the essential knowledge and skills in Electroanalytical Chemistry that a Chemistry graduate must possess. It is a fundamental subject that enables students to acquire the basic training in Electroanalysis necessary for most graduation profiles. With this objective, it addresses the generic principle of instrumental methods of analysis and provides an introduction to instrumental analytical techniques, specifically electrochemical analysis techniques.

This compulsory subject is the second one in the Analytical Chemistry area of knowledge, with a workload of 6 ECTS credits (4.5 theoretical and 1.5 practical). Its teaching has a direct impact on the learning process of subsequent subjects called Spectroscopic Methods of Analysis and Separation Techniques. On the other hand, the knowledge acquired in this subject is essential to understand and approach the learning of disciplines from other areas of knowledge, in accordance with the multidisciplinary nature of Analytical Chemistry.

Learning outcomes

  • CM17 (Plan a strategy for the different stages of the analytical procedure to solve problems that arise in the field of Chemistry.) Plan a strategy for the different stages of the analytical procedure to solve problems that arise in the field of Chemistry.
  • CM18 (In a group and collaborative manner, interpret the instructions provided in a laboratory protocol for the gravimetric and volumetric, electrochemical and optical analysis of chemical samples.) In a group and collaborative manner, interpret the instructions provided in a laboratory protocol for the gravimetric and volumetric, electrochemical and optical analysis of chemical samples.
  • CM19 (Interpret data obtained from laboratory experiments and evaluate its quality through experimental measurements, including the use of computer tools and relating them to appropriate chemical, physical, or biological theories.) Interpret data obtained from laboratory experiments and evaluate its quality through experimental measurements, including the use of computer tools and relating them to appropriate chemical, physical, or biological theories.
  • KM19 (Identify the strategy to be observed in the different stages of the analytical procedure.) Identify the strategy to be observed in the different stages of the analytical procedure.
  • KM20 (Identify gravimetric and volumetric analysis methods, techniques based on electroanalytical and spectroscopic methods, and analytical quality indicators.) Identify gravimetric and volumetric analysis methods, techniques based on electroanalytical and spectroscopic methods, and analytical quality indicators.
  • SM19 (Apply chemical knowledge to solve quantitative and qualitative problems, treating the results with statistical methods and referring to bibliographic sources when necessary.) Apply chemical knowledge to solve quantitative and qualitative problems, treating the results with statistical methods and referring to bibliographic sources when necessary.
  • SM20 (Apply the main analytical techniques used in the identification and determination of the composition of matter.) Apply the main analytical techniques used in the identification and determination of the composition of matter.
  • SM21 (Handle the typical instruments, products and waste of an analytical chemistry laboratory, taking into account their impact on safety and the environment.) Handle the typical instruments, products and waste of an analytical chemistry laboratory, taking into account their impact on safety and the environment.

Contents

The theoretical contents are structured into 6 lessons distributed across 1 thematic module, which are detailed below. The experimental contents are distributed over 6 practical sessions, described in the 2nd thematic module.

PROGRAMME: THEORY AND PROBLEMS (4.5 ECTS credits) (41 classroom hours)

MODULE I: INSTRUMENTAL METHODS. ELECTROANALYTICAL METHODS OF ANALYSIS

Lesson 1: Instrumental methods of analysis. Quality parameters of an analytical method. Concept of calibration. Quality parameters of a calibration curve. Types of calibration.

Lesson 2: Fundamentals of electrochemistry. Electrochemical cells: galvanic and electrolytic. Nernst equation. Standard potential. Faradaic and non-faradaic current. Ohmic drop. Polarization. Overpotential. Mass transfer mechanisms: migration, convection, and diffusion. Classification of electroanalytical techniques.

Lesson 3: Potentiometry. Introduction. Classification of indicator electrodes. Reference electrodes. Liquid junction potential. Ion-selective electrodes. Glass electrode. Direct potentiometry: electrode calibration and standard addition.

Lesson 4: Electrogravimetry. Introduction. Fundamentals of electrogravimetry. Electrogravimetry with constant applied potential. Electrogravimetry with controlled cathodic or anodic potential.

Lesson 5: Coulombimetry. Introduction. Fundamentals of coulombimetry. Potentiostatic coulombimetry: controlled anodic or cathodic potential. Chemical coulombmeters. Amperostatic coulombimetry: coulombimetric titrations.

Lesson 6: Voltammetry. Introduction. Fundamentals of voltammetric techniques. Microelectrodes in voltammetry. Classical polarography: dropping mercury electrode. Polarographic waves. Limiting diffusion current. Residual current. Half-wave potential. Current-potential curves. Ilkovic equation. Hydrodynamic voltammetry: voltammetric sensors. Qualitative and quantitative applications.

MODULE II: LABORATORY EXPERIMENTATION

The practical contents are distributed across several laboratory practicals that will be carried out over 6 sessions of 4 hours each. The distribution of the practicals into sessions can be consulted in the table below. The total workload is 1.5 ECTS (37.5 total working hours), considering classroom time (laboratory) and non-classroom time (preparation of practicals, report writing, and exam). The laboratory practicals will be carried out in a single block upon completion of the theoretical contents corresponding to all teaching units.

PROGRAMME: PRACTICALS (1.5 ECTS credits) (24 classroom hours)

Session Practical Classroom hours
1 P1: Determination of phosphoric acid in a carbonated cola beverage 4
2, 3 P2: Manufacture and evaluation of an Ag/AgCl electrode for the determination of chloride ion in tomato juice 8
4 P3: Determination of content in Fe(II) water (linear sweep voltammetry) 4
5, 6 P4: Determination of paracetamol content in pharmaceutical preparations (amperometry) 8

Learning activities and methodology

Title Hours ECTS Learning outcomes
Seminars 2 0.08 CM17, KM19, KM20, SM19, SM20
Practical reports 14 0.56 CM18, CM19, KM19, KM20, SM20, SM21
Theory 29 1.16 CM17, KM19, KM20, SM19
Problem solving 12 0.48 CM17, KM19, KM20, SM19
Practicals 24 0.96 CM18, CM19, KM19, KM20, SM20, SM21
Problems 10 0.4 CM17, KM19, KM20, SM19
Cooperative activities 2 0.08 CM18, KM19, KM20, SM19, SM20
Individual activities 6 0.24 CM17, KM19, KM20
Theory study 36 1.44 CM17, KM19, KM20, SM19
Activities 3 0.12 CM17, KM19, KM20, SM19

The activities required to achieve the learning outcomes of this course include theory lectures, problem-solving classes, seminars, and laboratory practicals. In this course, problem-based learning (PBL) and flipped classroom strategies will be used to address specific areas of knowledge.

Theory classes

Theory classes will be expository lectures supported by audiovisual materials, which will be available to students on the course Moodle Virtual Campus.

To reinforce learning, formative activities will be proposed, which can be carried out either in groups or individually. These activities are designed to promote the achievement of specific competences as well as to develop transferable skills.

Formative activities will take place inside and/or outside the classroom and are aimed at problem-solving and/or information retrieval. Activities carried out outside the classroom must be submitted within the established deadline. Some of these activities may be conducted in English.

In seminars, smaller groups will be formed to resolve doubts or to work on more complex concepts or problems.

On the other hand, autonomous work by the student will be required to reinforce knowledge through reading and understanding the recommended reference books, websites, or materials provided for specific topics.

Problem-solving classes

In problem-solving classes, the contents of the theory classes will be developed in a practical manner. Problem sets will be provided before the classes so that students can work on them in advance, thus allowing any doubts that arise to be resolved.

Practical classes

For the laboratory practicals, students will be provided with a lab manual indicating the objectives, the rationale behind the experimental procedure, the expected results, and some relevant questions. It is highly important that, prior to the practical session, students read the manual to understand the experiment they will carry out and to attempt to answer the subsequent questions raised. Each day of practicals, students will spend 4 hours performing laboratory experiments under the guidance of the teaching staff, and 1-2 hours on autonomous work for reading and understanding the lab manual, as well as for writing a report with the results obtained, their discussion, and the most relevant conclusions.

For this course, the use of Artificial Intelligence (AI) technologies is permitted exclusively as a study support tool, such as for literature searches or information gathering during autonomous work outside the classroom. In any case, students must clearly identify which parts have been generated using this technology, specify the tools used, and include a critical reflection on how these have influenced both the process and the final outcome of the activity.

Laboratory safety warning: Any student involved in an incident that may have serious safety consequences may be expelled from the laboratory and fail the subject.

Annotation: within the schedule set by the centre or degree programme, 15 minutes of one class will be reserved for students to evaluate their lecturers and their courses or modules through questionnaires.

Assessment

Continuous assessment activities

Title Weight Hours ECTS Learning outcomes
Formative activities 0.05% 3 0.12 CM17, CM18, KM19, KM20, SM19, SM20
Second partial 40% 3 0.12 CM17, KM19, KM20, SM19
Laboratory practices 20% 3 0.12 CM18, CM19, KM19, KM20, SM20, SM21
First Partial 40% 3 0.12 CM17, CM19, KM20, SM19

Assessment will be continuous, consisting of two midterm exams, formative activities, and laboratory practicals. The final course grade will be calculated by weighting each of the theory components and the laboratory practicals.

The final grade calculation will be based on the following formula:

FINAL GRADE = 0.8 x GLOBAL THEORY GRADE + 0.2 x GLOBAL PRACTICAL GRADE

Where:

GLOBAL THEORY GRADE = EXAM GRADE (out of 10) x 1 + FORMATIVE ACTIVITIES GRADE (out of 10) x 0.05

EXAM GRADE = 0.5 x Midterm Exam 1 + 0.5 x Midterm Exam 2

GLOBAL PRACTICAL GRADE = 0.7 x LABORATORY GRADE + 0.3 x PRACTICAL EXAM GRADE

LABORATORY GRADE = 0.9 x Reports Grade + 0.1 x Attitude Grade

To pass the course, students must obtain a GLOBAL THEORY GRADE of 5 or higher (out of 10 points) and a GLOBAL PRACTICAL GRADE of 5 or higher (out of 10 points). Failure to meet either of these conditions will result in a maximum final grade of 4.5 (out of 10 points) published in the official records.

If the GLOBAL THEORY GRADE via continuous assessment is below 5 (out of 10 points), students may take a remedial exam for the entire course. For those taking the remedial exam, the formative activities grade will be considered in the same way as in the continuous assessment. In this case, the following formula will be used:

GLOBAL THEORY GRADE = REMEDIAL EXAM GRADE (out of 10) x 1 + FORMATIVE ACTIVITIES GRADE (out of 10) x 0.05

If the practical exam grade is below 5 (out of 10 points), the student cannot pass the course through continuous assessment and must take the practical remedial written exam held on the same day as the final exam. In this case, the GLOBAL PRACTICAL GRADE will be calculated using the following expression (with no minimum grade restriction on the remedial practical exam):

GLOBAL PRACTICAL GRADE = 0.7 x LABORATORY GRADE + 0.3 x REMEDIAL PRACTICAL EXAM GRADE

A grade of "NOT EVALUATED" (NO AVALUABLE) will be assigned in the following cases:

  • There is no laboratory practicals grade (attendance at practical classes is mandatory).
  • The student completes and passes the practicals (there is a grade for the practical coursework), but does not take any partial exam or the make-up exam.

If a student fails the course but passes the practical component, the GLOBAL PRACTICAL GRADE may only be carried over to the following academic year if it is equal to or greater than 6 (out of 10 points).

Other important considerations:

  • Any student involved in an incident that could have serious safety consequences may be expelled from the laboratory and fail the course.
  • The use of Artificial Intelligence (AI) technologies is not permitted in any in-class assessment activities, including partial exams and the practical exam. Non-disclosure of AI use in this assessable activity will be considered a breach of academic honesty and may result in a partial or total grade penalty for the activity, or more severe sanctions in serious cases.
  • Committing any irregularity during an assessment activity (academic fraud, plagiarism, or unauthorized use of AI, unless expressly permitted in the course guide) that could lead to a significant variation in the grade will result in a grade of 0 for that activity. If the course guide establishes that a minimum grade in that specific assessment is an essential requirement to pass the course, or if multiple irregularities occur within the same course, the final grade for the course will be 0. Regardless of this, disciplinary proceedings may be initiated against the student.

Single assessment: Students who have opted for the single assessment modality must take a final exam covering the entire theoretical and problem-solving syllabus of the course. This exam will take place on the same day that continuous assessment students take their second midterm exam.

The grading will be as follows:

FINAL GRADE = 0.8 x FINAL EXAM GRADE + 0.2 x GLOBAL PRACTICAL GRADE

To pass the course, students must obtain a FINAL EXAM GRADE of 5 or higher (out of 10 points) and a GLOBAL PRACTICAL GRADE of 5 or higher (out of 10 points). Failure to meet either of these conditions will result in a maximum final grade of 4.5 (out of 10 points) in the official records.

If the final exam grade is below 5 (out of 10 points), students will have another opportunity to pass the course through a remedial exam held on the same date as the remedial exam for continuous assessment students. This test allows recovery of the percentage corresponding to the theory component (80%). The global practical grade remains subject to the same conditions as in the continuous assessment modality.

Bibliography

  • D.A. Skoog, F.J. Holler, T.A. Nieman, Principios de Análisis Instrumental, Ed. MacGraw-Hill, 5ª edició, Madrid, 2001. ISBN: 84-481-2775-7.
  • Gary D. Christian, Química Analítica, Ed. MacGraw-Hill, traducció de la 6ª edició, México, 2009. ISBN: 978-970-10-7234-9.
  • Skoog, West, Holler, Crouch, Fundamentos de Química Analítica, 8ª edició, Thomson Editores Spain, Thomson-Paraninfo, Madrid, 2005. ISBN. 84-9732-333-5.
  • Pomerantsev Alexey L. Chemometrics in Excel, 2014 John Wiley & Sons, Inc. Online ISBN:9781118873212 |DOI:10.1002/978111887321. https://onlinelibrary.wiley.com/doi/book/10.1002/9781118873212
  • Monk Paul. Fundamentals of Electroanalytical Chemistry and Materials Sciences, 2001 John Wiley & Sons, Ltd. Online ISBN:9780470511329 |DOI:10.1002/9780470511329. https://onlinelibrary.wiley.com/doi/book/10.1002/9780470511329


Software

Microsoft Office: Excel, Word i Power Point.


Course groups and languages

The information provided is provisional until November 30. After this date, you will be able to consult the language of each group through this link. To access the information, you will need to enter the course CODE

Type of teaching Group Language Semester Shift
(TE) Theory 1 Catalan second semester morning-mixed
(PAUL) Classroom practices 1 Catalan second semester morning-mixed
(PLAB) Practical laboratories 1 Catalan second semester morning-mixed
(SEM) Seminars 1 Catalan second semester morning-mixed
(PLABs) Suport a les pràctiques de laboratori 1 Catalan second semester morning-mixed
(TE) Theory 2 Spanish second semester morning-mixed
(PAUL) Classroom practices 2 Catalan second semester morning-mixed
(PLAB) Practical laboratories 2 Catalan second semester morning-mixed
(SEM) Seminars 2 Spanish second semester morning-mixed
(PLABs) Suport a les pràctiques de laboratori 2 Catalan second semester morning-mixed
(PLAB) Practical laboratories 3 Catalan second semester afternoon
(PLABs) Suport a les pràctiques de laboratori 3 Catalan second semester afternoon
(PLAB) Practical laboratories 4 Catalan second semester afternoon
(PLABs) Suport a les pràctiques de laboratori 4 Catalan second semester afternoon