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Alexei Goun; Ksenija D. Glusac – Journal of Chemical Education, 2023
Ultrafast laser spectroscopy is a valuable and increasingly accessible technique for studies of rapid chemical reactions. Critical to ultrafast spectroscopy is the concept of mode locking, a technique that enables a fixed phase relationship between laser modes, resulting in laser pulses with very short duration (in the fs or ps range). Despite the…
Descriptors: Lasers, Spectroscopy, Science Instruction, Chemistry
Elise K. Wilbourn; Sarah Alrimaly; Holly Williams; Jacob Hurst; Gregory P. McGovern; Todd A. Anderson; Naruki Hiranuma – Journal of Chemical Education, 2023
This paper introduces hands-on curricular modules integrated with research in atmospheric ice nucleation, which is an important phenomenon potentially influencing global climate change. The primary goal of this work is to promote meaningful laboratory exercises to enhance the competence of students in the fields of science, technology,…
Descriptors: Science Instruction, Chemistry, Climate, Science Laboratories
White, Jacob; Costilow, Kimberly; Dotson, Jacob; Mauldin, Robert; Schanandore, Mattie; Shockley, Denise – Journal of Chemical Education, 2021
In this guided-inquiry lesson, students were tasked with determining the efficacy of an at-home drinking water filter at removing lead (Pb) from tap water using graphite furnace atomic absorption spectroscopy by determining the concentration of lead before and after filtration. The lesson was structured to allow students to choose and perform…
Descriptors: Science Instruction, Science Laboratories, Inquiry, Science Experiments
Takor, Gaius; Morgan, Christopher E.; Chiu, Liang-Yuan; Kendrick, Nashea; Clark, Emily; Jaiswal, Rohan; Tolbert, Blanton S. – Journal of Chemical Education, 2020
Two-dimensional nuclear magnetic resonance (2D NMR) techniques are regularly used for the determination of RNA structures. In an effort to introduce advanced level students who are generally not acquainted with or exposed to these techniques, this work, which has been designed as a practicum, utilizes a combination of 2D NMR techniques to help…
Descriptors: College Science, Undergraduate Study, Thermodynamics, Spectroscopy
Habeeb, Zeeshan; Lewis, Rubina; Liu, Shuangyuan Michael; Prosser, R. Scott – Journal of Chemical Education, 2020
A modular experiment for upper-level undergraduate students is presented, featuring the product cycle and process evaluating the quality and quantity of biodiesel obtained from a microalgae feedstock grown under carbon-supplemented and nutrient-deprived conditions. Batch reactors are used to cultivate and harvest microalgae, which undergo…
Descriptors: Science Instruction, College Science, Undergraduate Study, Fuels
He, Zhiyu; Ding, Shansen; Wang, Luyang; Wang, Guoqing; Liang, Xingguo; Takarada, Tohru; Maeda, Mizuo – Journal of Chemical Education, 2021
Demonstration of a colorimetric approach for nucleic acid detection represents an attractive educational experiment for chemistry undergraduate students in the time of coronavirus pandemic. Herein, a rapid and vivid detection method that visualizes the presence of a specific DNA sequence is described. The plasmon resonance of gold nanoparticles…
Descriptors: Science Instruction, College Science, Chemistry, Science Experiments
Sattar, Simeen – Journal of Chemical Education, 2019
Pigments, dyes, and transition-metal compounds are made in courses across the undergraduate chemistry curriculum, but student characterization of these compounds' most striking features, their colors, seldom goes beyond verbal descriptions. Affordable, hand-held, fiber-optic reflectance spectrophotometers make it possible to advance students'…
Descriptors: Chemistry, Science Instruction, Undergraduate Students, Color
Schwarz, Gunnar; Picotti, Vincenzo; Bleiner, Davide; Gundlach-Graham, Alexander – Journal of Chemical Education, 2020
This paper summarizes a project seminar in analytical chemistry that includes a method comparison approach and collaborative learning. In this project seminar, 12 students worked in four groups, each of which focused on one method for quantitative element analysis, including flame atomic absorption spectroscopy, inductively coupled plasma mass…
Descriptors: Student Centered Learning, Teaching Methods, Cooperative Learning, Chemistry
Wheate, Nial J.; Apps, Michael G.; Khalifa, Hazer; Doughty, Alan; Patel, Alpesh Ramanlal – Journal of Chemical Education, 2017
A laboratory experiment to determine the concentration of the anti-inflammatory drug ibuprofen in liquid gelatin capsule dosage forms, suitable for undergraduate chemistry or pharmacy students, is described. Either individually, or in small teams, the students digest two 200 mg capsules in a KOH solution. While the capsules are digesting the…
Descriptors: Science Instruction, Science Laboratories, Laboratory Experiments, Science Experiments