An experimental introduction to basic principles of the interaction of electromagnetic radiation with matter
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- To understand basic principles about the interaction of electromagnetic radiation with matter is often a challenge in chemical education due to the difficult theoretical background of this topic. The present contribution therefore offers an experimental based introduction into the basic principles of UV/Vis spectroscopy following a three-step strategy. The starting point is to construct a simple self-built spectrometer working within the visible range of light. Learners can explore the most important components of such a device and understandTo understand basic principles about the interaction of electromagnetic radiation with matter is often a challenge in chemical education due to the difficult theoretical background of this topic. The present contribution therefore offers an experimental based introduction into the basic principles of UV/Vis spectroscopy following a three-step strategy. The starting point is to construct a simple self-built spectrometer working within the visible range of light. Learners can explore the most important components of such a device and understand their functions without previous knowledge. In a second step, emission spectra of different common light sources are investigated and compared. Finally, spectroscopic experiments are suggested for chemical education such as the qualitative detection of cations and the quantitative analysis of the dye carmine in food. This context-based introduction links chemical applications with the everyday life. It can be presumed that this way, learners are provided an easier access to radiation-matter interaction.…
Autor(en): | Patrick Schairer, Stephan Wagner, Ekkehard Geidel |
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URN: | urn:nbn:de:bvb:20-opus-175811 |
Dokumentart: | Artikel / Aufsatz in einer Zeitschrift |
Institute der Universität: | Fakultät für Chemie und Pharmazie / Institut für Anorganische Chemie |
Sprache der Veröffentlichung: | Englisch |
Titel des übergeordneten Werkes / der Zeitschrift (Englisch): | World Journal of Chemical Education |
Erscheinungsjahr: | 2018 |
Band / Jahrgang: | 6 |
Heft / Ausgabe: | 1 |
Seitenangabe: | 29-35 |
Originalveröffentlichung / Quelle: | World Journal of Chemical Education, 2018, Vol. 6, No. 1, 29-35. DOI: 10.12691/wjce-6-1-6 |
DOI: | https://doi.org/10.12691/wjce-6-1-6 |
Allgemeine fachliche Zuordnung (DDC-Klassifikation): | 5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften |
Freie Schlagwort(e): | UV/Vis spectroscopy; carmine; flame test; low-cost spectrometer; quantitative analysis |
Datum der Freischaltung: | 23.04.2019 |
Sammlungen: | Open-Access-Publikationsfonds / Förderzeitraum 2018 |
Lizenz (Deutsch): | CC BY: Creative-Commons-Lizenz: Namensnennung 4.0 International |