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Viking Spectrophotometer : A Home-Built, Simple, and Cost-Efficient Absorption and Fluorescence Spectrophotometer for Education in Chemistry

Kolesnichenko, Pavel V. LU orcid ; Eriksson, Axl LU ; Lindh, Linnea LU orcid ; Zigmantas, Donatas LU orcid and Uhlig, Jens LU (2023) In Journal of Chemical Education 100(3). p.1128-1137
Abstract

Investigating the optical properties of various chemical compounds using UV-vis spectrophotometers is an essential part of education in chemistry. However, commercial spectrophotometers are usually treated as "magic black boxes", where the dominant majority of optical elements are hidden "under the hood". This often limits understanding of the mechanisms behind the generation of spectral curves, which in turn may impede the ability to understand the limitations of the applied method and, in some cases, interpret the acquired data. In addition, the study of optical emission phenomena using fluorescence spectrophotometers is seldom implemented in educational laboratories due to the practical challenges and costs of the devices, which... (More)

Investigating the optical properties of various chemical compounds using UV-vis spectrophotometers is an essential part of education in chemistry. However, commercial spectrophotometers are usually treated as "magic black boxes", where the dominant majority of optical elements are hidden "under the hood". This often limits understanding of the mechanisms behind the generation of spectral curves, which in turn may impede the ability to understand the limitations of the applied method and, in some cases, interpret the acquired data. In addition, the study of optical emission phenomena using fluorescence spectrophotometers is seldom implemented in educational laboratories due to the practical challenges and costs of the devices, which severely limit pedagogic access to this topic. For students to be more confident with these two basic spectroscopy techniques, we have developed a laboratory kit that provides a multifaceted learning experience. Starting with a basic exploration of an instrument assembly, it teaches, for example, such technical concepts as spectral resolution and detection sensitivity. More fundamentally, it enables deeper learning of the Beer-Lambert law and the notion of Stokes shift. The spectrophotometer is built from cost-efficient materials and is easily scalable, making it affordable for many educational laboratories. Due to a modular design, it is adaptable to various levels of education and has been successfully applied during high school-, undergraduate-, and graduate-level classes.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
absorption, chemistry, education, fluorescence, outreach, project-based learning, spectrometer, spectrophotometer, spectroscopy
in
Journal of Chemical Education
volume
100
issue
3
pages
1128 - 1137
publisher
The American Chemical Society (ACS)
external identifiers
  • scopus:85148020937
ISSN
0021-9584
DOI
10.1021/acs.jchemed.2c00679
project
Viking Spectrophotometer: A Home-Built, Simple, and Cost-Efficient Absorption and Fluorescence Spectrophotometer for Education in Chemistry
language
English
LU publication?
yes
id
2578fffa-10e4-444d-b06b-b4d16b4f5781
date added to LUP
2023-03-08 14:54:18
date last changed
2023-11-21 05:32:12
@article{2578fffa-10e4-444d-b06b-b4d16b4f5781,
  abstract     = {{<p>Investigating the optical properties of various chemical compounds using UV-vis spectrophotometers is an essential part of education in chemistry. However, commercial spectrophotometers are usually treated as "magic black boxes", where the dominant majority of optical elements are hidden "under the hood". This often limits understanding of the mechanisms behind the generation of spectral curves, which in turn may impede the ability to understand the limitations of the applied method and, in some cases, interpret the acquired data. In addition, the study of optical emission phenomena using fluorescence spectrophotometers is seldom implemented in educational laboratories due to the practical challenges and costs of the devices, which severely limit pedagogic access to this topic. For students to be more confident with these two basic spectroscopy techniques, we have developed a laboratory kit that provides a multifaceted learning experience. Starting with a basic exploration of an instrument assembly, it teaches, for example, such technical concepts as spectral resolution and detection sensitivity. More fundamentally, it enables deeper learning of the Beer-Lambert law and the notion of Stokes shift. The spectrophotometer is built from cost-efficient materials and is easily scalable, making it affordable for many educational laboratories. Due to a modular design, it is adaptable to various levels of education and has been successfully applied during high school-, undergraduate-, and graduate-level classes.</p>}},
  author       = {{Kolesnichenko, Pavel V. and Eriksson, Axl and Lindh, Linnea and Zigmantas, Donatas and Uhlig, Jens}},
  issn         = {{0021-9584}},
  keywords     = {{absorption; chemistry; education; fluorescence; outreach; project-based learning; spectrometer; spectrophotometer; spectroscopy}},
  language     = {{eng}},
  number       = {{3}},
  pages        = {{1128--1137}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{Journal of Chemical Education}},
  title        = {{Viking Spectrophotometer : A Home-Built, Simple, and Cost-Efficient Absorption and Fluorescence Spectrophotometer for Education in Chemistry}},
  url          = {{http://dx.doi.org/10.1021/acs.jchemed.2c00679}},
  doi          = {{10.1021/acs.jchemed.2c00679}},
  volume       = {{100}},
  year         = {{2023}},
}