Multipurpose DIY Spectrophotometer for Teaching Analytical Chemistry

IF 2.5 3区教育学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Journal of Chemical Education Pub Date : 2025-01-16 DOI:10.1021/acs.jchemed.4c0122910.1021/acs.jchemed.4c01229

Gina DelMonache, Pratahdeep Gogoi, Xiaoli Ge, Xingyu Wang, Rachel Snider, Owen Szeglowski, Timothy R. Cook, Ziyun Wang and Yuguang C. Li*,

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引用次数: 0

Abstract

Spectroscopy is an integral part of chemical research, and the operation of any spectroscopic instrument is critical in chemical education. This study presents a low-cost, do-it-yourself (DIY) style spectrophotometer system that can be adapted for UV–vis spectrophotometry, fluorimetry, and atomic emission spectroscopy applications. The DIY system is constructed with commonly available hardware and 3D-printed parts, totaling less than $100 USD. Python code is also provided to process the color spectrum image into intensity vs wavelength data, similar to any commercial-level instrument. The functionality of the DIY spectrophotometer is demonstrated with the absorption of KMnO₄, fluorescence of fluorescein and atomic emission of LiCl, NaCl, BaCl₂, and SrCl₂. All of the collected spectra show accurate results compared to a commercial instrument or existing literature. The goal of this project is to provide a hands-on platform for undergraduate students to see and modify the individual components of a spectrophotometer, which will enhance their understanding of the underlying principles.

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来源期刊

Journal of Chemical Education 化学-化学综合

CiteScore

5.60

自引率

50.00%

发文量

465

审稿时长

6.5 months

期刊介绍： The Journal of Chemical Education is the official journal of the Division of Chemical Education of the American Chemical Society, co-published with the American Chemical Society Publications Division. Launched in 1924, the Journal of Chemical Education is the world’s premier chemical education journal. The Journal publishes peer-reviewed articles and related information as a resource to those in the field of chemical education and to those institutions that serve them. JCE typically addresses chemical content, activities, laboratory experiments, instructional methods, and pedagogies. The Journal serves as a means of communication among people across the world who are interested in the teaching and learning of chemistry. This includes instructors of chemistry from middle school through graduate school, professional staff who support these teaching activities, as well as some scientists in commerce, industry, and government.