Building a Raspberry Pi Spectrophotometer for Undergraduate Chemistry Classes

Autor/inn/en	Chng, J. J. Kenneth; Patuwo, Michael Yudistira
Titel	Building a Raspberry Pi Spectrophotometer for Undergraduate Chemistry Classes
Quelle	In: Journal of Chemical Education, 98 (2021) 2, S.682-688 (7 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Chng, J. J. Kenneth)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0021-9584
Schlagwörter	Lesson Plans; Chemistry; Science Instruction; Spectroscopy; Measurement Equipment; Undergraduate Students; Student Projects; Design; Teaching Methods; Error of Measurement; Comparative Analysis; Foreign Countries; Light; Error Correction; Programming Languages; Laboratory Experiments; Outcomes of Education; United Kingdom (London) + Suchen Sie Ihr Suchwort? Lesson planning; Unterrichtsplanung; Chemie; Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht; Spektroskopie; Messinstrument; Schulprojekt; Teaching method; Lehrmethode; Unterrichtsmethode; Messfehler; Ausland; Licht; Korrektur; Laboratory work; Laborarbeit; Lernleistung; Schulerfolg
Abstract	We described and ran a lesson plan for a build-your-own visible-range spectrophotometer undergraduate project as inspired by the research of Bougot-Robin, Imperial College London. Students were required to improve a basic Raspberry Pi spectrophotometer design and evaluate their improvements. Students learned firsthand how to manage instrumental error by fixing component distances and minimizing stray light, while modifying their Python scripts to process and plot their collected data. Students evaluated the quality of their instrument prototypes by quantifying the limits of detection, quantification, and linearity, or by attempting to reproduce the visible spectrum of aqueous methylene blue solution. As part of the key findings of this work, we found that student ability to draw a diagram of a spectrophotometer has improved by an effect size of Hedges' g = +2.25 by the end of the semester, compared to g = -0.05 for students who took traditional chemistry lab classes instead. (As Provided).
Anmerkungen	Division of Chemical Education, Inc. and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01