Sensors and sensory reception of volatile substances 0600-S1-SP/W-SSSL

Lecture:
History – the first chemical sensors in mining and for detecting cold gas and LPG. IUPAC sensor definition. Sensor vs. sensor. Receptor layer and transducer. Chemical and physical sensors. Use of sensor measurements: off-line, at-line and in-line. Sensory analysis vs. advanced instrumental analysis. Functional parameters of the sensors: sensitivity, repeatability, selectivity, stability, reproducibility, response time. Biosensors as a special category of chemical sensors. Sensors - principle of operation: electrochemical - amperometric, electrochemical - potentiometric, resistive, resistive - catalytic, optical, capacitive, thermal, mass. pH electrode – metric as the oldest potentiometric sensor. Oxygen sensor according to Clark. Glucose sensor according to Clark as the first enzymatic biosensor. Glucose biosensors of the I, II and III generation. Redox mediators. Other enzymatic sensors. Advantages and disadvantages of enzymatic biosensors. Types of substances of biological origin used as a receptor layer in biosensors. Methods of immobilization of biological substances in biosensors. The role of selective membranes in biosensors. Ion-selective electrodes. Optical biosensors. Biomarkers as natural biosensors for the detection of environmental contamination. Electronic nose and electronic language as substitutes for smell and taste. Overview of sensor catalogs available on the market.

Laboratory program content:
1. Determination of odoured air quality by static yes-no method
2. Preparation of standard mixtures using the dynamic method - breathalyzer testing.
3. Determination of detection characteristics of commercial humidity sensors and resistive carbon sensors
4. Application of color reactions for the detection of solvent vapors in the air stream in the process of determining the dynamic absorption of sorbents
5. Determination of laboratory air pollutants by gas chromatography with sample enrichment

Total student workload

Hours with the participation of teachers (85 hours): - participation in lectures – 45 hours - participation in the laboratory – 30 hours - consultations and work with an academic teacher – 10 hours Time spent on individual student work (65 hours): - preparation for the laboratory – 30 hours - student preparation for the exam – 35 hours Total: 150 hours (6 ECTS)

Learning outcomes - knowledge

Student: W1: Knows the concepts of chemical sensors K_W03 W2: Has knowledge of the classification of chemical sensors according to the type of transducer. K_W06 W3: Techniques for collecting and preparing samples from environmental matrices for analysis- K_W12

Learning outcomes - skills

Student: Student: U1: He is skilled in measuring basic chemical quantities and can develop the results of physico-chemical experiments - K_U05. U2: Can choose the right sensor to perform a specific determination and can develop experimental results - K_U06. U3: collect, prepare and analyze environmental samples - K_U12

Learning outcomes - social competencies

Student: K1: Independently and effectively works with a large amount of information, perceives the relationships between phenomena and correctly draws conclusions using the principles of logic - K_K01. K2: The need for continuous improvement and improvement of professional competences is necessary - K_K05. K3: establishes cooperation in a group – K_K09

Teaching methods

Teaching methods giving: 1. information lecture (conventional) with the use of multimedia presentations. Teaching methods seeking: laboratory: laboratory – laboratory classes are related to the curriculum content processed during the lecture. The student performs the tasks independently after preparation based on the available instruction and recommended literature. Based on the observations made and the results of measurements, the student writes down the relevant reaction equations, performs calculations and draws conclusions.

Prerequisites

Entry for the semester and year of study enabling admission to study the subject.

Course coordinators

Emil Korczeniewski

Assessment criteria

Assessment methods:
lecture - K_W01, K_W08, K_U01, K_K01, K_K02, K_K05, K_K06, K_K08
laboratory - K_W01, K_U03, K_U05, K_U08, K_K01, K_K02, K_K03, K_K05, K_K06, K_K08, K_K09

Assessment criteria:
Lecture:
Block pass with the following weights:
60% two-hour written exam covering the content discussed in the lecture
40 % assessment from the laboratory

Required threshold for assessment:
satisfactory: 50 -60 %
satisfactory plus: 61 – 65 %
good: 66 – 75%
good plus: 76 – 80%
very good: 81-100 %

Laboratory:
Laboratory classes held in groups of two or three people, successively at 4 experimental stations (4 mandatory exercises). Completion and completion of subsequent exercises on the basis of written reports assessed by the lecturers.

Required threshold for assessment:
satisfactory: 50 -60 %
satisfactory plus: 61 – 65 %
good: 66 – 75%
good plus: 76 – 80%
very good: 81-100 %

Practical placement

not applicable

Bibliography

1) Z. Brzózka, W. Wróblewski, Sensory Chemiczne, OWPW, 1999.
2) A. Hulanicki, Współczesna chemia analityczna. Wybrane zagadnienia, PWN, Warszawa 2001. Rozdz. XV - Czujniki chemiczne
3) Z. Brzózka, E. Malinowska, W. Wróblewski, Sensory chemiczne i biosensory, PWN, Warszawa, 2022.
4) P. Grundler, Chemical Sensors, Springer, 2007.
5) J. Janata, Pronciples of Chemical Sensors, Springer, 2009.
6) B. R. Eggins, Chemical Sensors and Biosensors, J. Wiley & Sons, Chichester, 2002.
7) D. G. Buerk, Biosensors: Theory and Applications, CRC Press, 1999.

Additional information

Additional information (registration calendar, class conductors, localization and schedules of classes), might be available in the USOSweb system:

Description of 0600-S1-SP/W-SSSL in USOSweb