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Appears in:
Pages: 9011-9015
Publication year: 2018
ISBN: 978-84-09-02709-5
ISSN: 2340-1117
doi: 10.21125/edulearn.2018.2110

Conference name: 10th International Conference on Education and New Learning Technologies
Dates: 2-4 July, 2018
Location: Palma, Spain

HIDDEN RISKS OF (SCHOOL) CHEMICAL LABORATORY

H. Cídlová, J. Šibor

Masaryk University (CZECH REPUBLIC)
The article deals with a quite usual laboratory activity – pipetting. This method of measuring the volume of liquids appears to be relatively safe in comparison with other chemical operations. But, on the other hand, the use of classical glass pipettes is connected with many security and health risks. The usual chemical hazards associated with inhalation of the pipetted substance or its intrusion into the mouth are repeatedly mentioned to the pupils and students and they are trained to prevent these situations. However, the health risks associated with the use of glass pipettes are being nearly never mentioned at schools, and that is why Czech pupils and students are aware of them only exceptionally.

In the introduction to our article we explain the safety risks and health risks, advantages and disadvantages associated with different pipetting methods. Afterwards, we do analyze the results of a questionnaire survey between the students of chemistry teaching, focused on their favorite pipetting method and reasons to their decision. The last part of our research is the analysis of the results of different methods of pipetting carried out by the 3rd grade students of chemistry teaching at Faculty of Education, Masaryk University, Czech Republic. The analysis is focused on the correctness of pipetting (mean value of the pipetted volume) and accuracy of pipetting (relative standard deviation in repeated pipetting of the same volume).
@InProceedings{CIDLOVA2018HID,
author = {C{\'{i}}dlov{\'{a}}, H. and Šibor, J.},
title = {HIDDEN RISKS OF (SCHOOL) CHEMICAL LABORATORY},
series = {10th International Conference on Education and New Learning Technologies},
booktitle = {EDULEARN18 Proceedings},
isbn = {978-84-09-02709-5},
issn = {2340-1117},
doi = {10.21125/edulearn.2018.2110},
url = {http://dx.doi.org/10.21125/edulearn.2018.2110},
publisher = {IATED},
location = {Palma, Spain},
month = {2-4 July, 2018},
year = {2018},
pages = {9011-9015}}
TY - CONF
AU - H. Cídlová AU - J. Šibor
TI - HIDDEN RISKS OF (SCHOOL) CHEMICAL LABORATORY
SN - 978-84-09-02709-5/2340-1117
DO - 10.21125/edulearn.2018.2110
PY - 2018
Y1 - 2-4 July, 2018
CI - Palma, Spain
JO - 10th International Conference on Education and New Learning Technologies
JA - EDULEARN18 Proceedings
SP - 9011
EP - 9015
ER -
H. Cídlová, J. Šibor (2018) HIDDEN RISKS OF (SCHOOL) CHEMICAL LABORATORY, EDULEARN18 Proceedings, pp. 9011-9015.
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