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David L. Myers; Marc Hill; Brooke Baughman; Eugene T. Smith – Journal of Chemical Education, 2023
This exercise encompassed the construction and use of a microcontroller-based laser refractometer. The instrument, which does not require a high skill level to build, primarily consisted of a line laser, optical sensor, several 3-D printed parts and printed circuit boards, and a microcontroller development board. Construction and testing of the…
Descriptors: Open Education, Lasers, Shared Resources and Services, Printing
Navarre, Edward C. – Journal of Chemical Education, 2020
A simple computer interface for controlling a compact spectrograph for use as a spectrophotometer in an undergraduate teaching laboratory was developed. The project was implemented on a Raspberry Pi computer which permits the integration of a light source into the software. The interface was written in Python to facilitate modification by the user…
Descriptors: Chemistry, Science Instruction, College Science, Undergraduate Students
Kovarik, Michelle L.; Clapis, Julia R.; Romano-Pringle, K. Ana – Journal of Chemical Education, 2020
One challenge of teaching chemical analysis is the proliferation of sophisticated, but often impenetrable, instrumentation in the modern laboratory. Complex instruments, and the software that runs them, distance students from the physical and chemical processes that generate the analytical signal. A solution to this challenge is the introduction…
Descriptors: Spectroscopy, Science Instruction, Teaching Methods, Science Laboratories
Garrido-Gonza´lez, Jose´ J.; Trillo-Alcala´, María; Sa´nchez-Arroyo, Antonio J. – Journal of Chemical Education, 2018
The generation of secondary colors in digital devices by means of the additive red, green, and blue color model (RGB) can be a valuable way to introduce students to the basics of spectroscopy. This work has been focused on the spectral separation of secondary colors of light emitted by a computer screen into red, green, and blue bands, and how the…
Descriptors: Science Instruction, Spectroscopy, Color, Educational Technology
Bigger, Stephen W.; Bigger, Andrew S.; Ghiggino, Kenneth P. – Journal of Chemical Education, 2014
The "FluSpec" educational software package is a fully contained tutorial on the technique of fluorescence spectroscopy as well as a simulator on which experiments can be performed. The procedure for each of the experiments is also contained within the package along with example analyses of results that are obtained using the software.
Descriptors: Science Instruction, Computer Software, Teaching Methods, Educational Technology
Ugone, Valeria; Garribba, Eugenio; Micera, Giovanni; Sanna, Daniele – Journal of Chemical Education, 2015
In this laboratory activity, the equilibrium between square pyramidal and octahedral V(IV)O[superscript 2+] complexes is described. We propose a set of experiments to synthesize and characterize two types of V(IV)O[superscript 2+] complexes. The experiment allows great flexibility and may be effectively used at a variety of levels and the activity…
Descriptors: Chemistry, Science Instruction, Science Experiments, Science Laboratories
Costello, Kelsey; Doan, Kevin Thinh; Organtini, Kari Lynn; Wilson, John; Boyer, Morgan; Gibbs, Greglynn; Tribe, Lorena – Journal of Chemical Education, 2014
This laboratory was developed by undergraduate students in collaboration with the course instructor as part of a peer-developed and peer-led lab curriculum in a general chemistry course. The goal was to explore the hypothesis that crystal violet lactone was responsible for the thermochromic properties of a sipping straw using a FT-IR for…
Descriptors: Science Instruction, Science Laboratories, Science Experiments, Spectroscopy
Gagnon, Michel – Physics Teacher, 2012
Introduced to study components of ionized gas, the mass spectrometer has evolved into a highly accurate device now used in many undergraduate and research laboratories. Unfortunately, despite their importance in the formation of future scientists, mass spectrometers remain beyond the financial reach of many high schools and colleges. As a result,…
Descriptors: Simulation, Science Laboratories, Computer Software, Spectroscopy
Soulsby, David – Journal of Chemical Education, 2012
An approach using Google Groups as method for distributing student-acquired NMR data has been implemented. We describe how to configure NMR spectrometer software so that data is uploaded to a laboratory section specific Google Group, thereby removing bottlenecks associated with printing and processing at the spectrometer workstation. Outside of…
Descriptors: Organic Chemistry, Science Instruction, Science Laboratories, Computer Software
Fisher, Amanda; Sekera, Emily; Payne, Jill; Craig, Paul – Biochemistry and Molecular Biology Education, 2012
In proteomics, complex mixtures of proteins are separated (usually by chromatography or electrophoresis) and identified by mass spectrometry. We have created 2DE Tandem MS, a computer program designed for use in the biochemistry, proteomics, or bioinformatics classroom. It contains two simulations--2D electrophoresis and tandem mass spectrometry.…
Descriptors: Biochemistry, Computer Software, Spectroscopy, Science Instruction
Mills, Nancy S.; Shanklin, Michael – Journal of Chemical Education, 2011
Students at two-year colleges and small four-year colleges have often obtained their exposure to NMR spectroscopy through "canned" spectra because the cost of an NMR spectrometer, particularly a high-field spectrometer, is prohibitive in these environments. This article describes the design of a NMR site at Trinity University in which…
Descriptors: Community Colleges, Colleges, Spectroscopy, Science Instruction
Prasad, Rajendra; Prasad, Surendra – Journal of Chemical Education, 2009
The formation constant of iron(III) complex with glycine (Gly) ligand in aqueous acidic medium (0.2 M HNO[subscript 3], I = 0.2 M at 28 plus or minus 1 degree C) was determined spectrophotometrically in which a competing color reaction between Fe(III) and SCN[superscript -] was used as an indicator reaction. Under the specified conditions Fe(III)…
Descriptors: Science Laboratories, Science Experiments, Teaching Methods, Spectroscopy
Wakabayashi, Fumitaka – Journal of Chemical Education, 2008
A new type of DVD spectroscope, the periscope type, is described and the numerical analysis of the observed emission and absorption spectra is demonstrated. A small and thin mirror is put inside and an eighth part of a DVD is used as a grating. Using this improved DVD spectroscope, one can observe and photograph visible spectra more easily and…
Descriptors: Photography, Chemistry, Teaching Methods, Spectroscopy

Ford, Alan R.; Burns, William A.; Reeve, Scott W. – Journal of Chemical Education, 2004
A version of the classic gas phase infrared experiment was developed for students at Arkansas State University based on the shortcomings of the rotationally resolved infrared experiment. Chem Spec II is a noncommercial Windows-based software package developed to aid in the potentially complicated problem of assigning quantum numbers to observed…
Descriptors: Computer Software, Chemistry, Undergraduate Study, Science Laboratories

Beck, Rainer; Nibler, Joseph W. – Journal of Chemical Education, 1989
Discusses electron spin resonance, a form of magnetic resonance spectroscopy, used to study electronic structure of molecules with unpaired electrons. Studies benzosemiquinone radical anions which are long-lived and inexpensive. Uses a Project SERAPHIM computer program to perform a Huckel molecular orbital calculation. (MVL)
Descriptors: Chemical Analysis, Chemical Bonding, Chemistry, College Science