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Armaghan Shafaei; Hayley Abbiss; Sophie Coutts; Mark Bannister; Janine Bruemmer; Mary C. Boyce – Journal of Chemical Education, 2022
A student experiment that uses QuEChERS (quick, easy, cheap, effective, rugged, and safe) methodology for extraction and HPLC for quantitative determination of tocopherols from seeds and nuts is described here. Chromatographic separation is achieved by using a pentafluorophenyl stationary phase which gives enhanced separation of the tocopherols…
Descriptors: Science Instruction, Science Laboratories, Chemistry, Laboratory Procedures
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Hugo Y. Samayoa-Oviedo; Emily Halpern; Samantha A. Mehnert; Julia Laskin – Journal of Chemical Education, 2022
The laboratory experiment presented here describes the use of a calcium ion-selective electrode (Ca-ISE) to determine the concentration of zinc in a supplement tablet. This approach was developed to show students how to expand the range of applications of Ca-ISE to enable the determination of metal ions other than Ca[superscript 2+]. To determine…
Descriptors: Laboratory Experiments, Chemistry, Medicine, Science Instruction
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Kyle M. Lambert; Christopher B. Kelly; John A. Milligan; Leon J. Tilley; Robert P. Reynolds; Kellen P. McGuire; Luigi Anzalone; Kimberly E. Del Sesto; Sinead Walsh – Journal of Chemical Education, 2022
Oxidation reactions are critical components of the synthetic toolbox taught to undergraduate students during introductory organic chemistry courses. However, the oxidation reactions discussed in the undergraduate curriculum are often outdated as many organic chemistry textbooks emphasize chromium-based oxidants that are no longer in regular use by…
Descriptors: Undergraduate Students, Scientific Concepts, Science Experiments, Organic Chemistry
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Kyle Weaver; Jennifer A. Reeves; Dominik Konkolewicz – Journal of Chemical Education, 2022
Organic chemistry students often struggle with reaction mechanisms, particularly in how they are proposed and justified. In this activity targeting second year organic undergraduates, students used infrared spectroscopy (IR) to track the reaction progress of two distinct aldol reactions and used polarimetry to analyze the stereoselectivity of…
Descriptors: Organic Chemistry, Scientific Concepts, Concept Formation, Undergraduate Students
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Vuppala, Laxmi Sinduri; Vazquez, Timothy; Nguyen, Ding; Knowlton, Maverick; Smith, Emily; Evan-Nguyen, Theresa – Journal of Chemical Education, 2020
Exposure to real-life applications of quantitative analysis techniques based on two gas chromatography (GC) experiments was provided to a large cohort of sophomore-level students. In one experiment, students assessed blood alcohol content by internal standardization using a homemade headspace system similar to methods implemented in forensic…
Descriptors: Undergraduate Students, Laboratory Experiments, Science Experiments, Biochemistry
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Simpson, Kevin; Jakubowski, Henry V. – Biochemistry and Molecular Biology Education, 2020
Enzyme-linked immunosorbent assays (ELISAs) are used widely in biotechnology, pharmaceutical, and clinical medicine labs. At the same time, they appear to be underrepresented in chemistry and biochemistry curricula, even though their sensitivity, selectivity, and ease of use would argue for their widespread use. We describe here an online ELISA…
Descriptors: Biochemistry, Science Laboratories, COVID-19, Patients
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Farinas, Pedro Sanchez; Doimo, Ana Luiza; da Silva, Marcos A. R.; Teixeira, Ivo F. – Journal of Chemical Education, 2020
Herein, we describe a simple laboratory experiment to address nanomaterial synthesis, plasmon resonance, and its application to detect Cu[superscript 2+] in ultralow concentrations. The proposed experiment is very visual and appealing for chemistry students, especially the undergraduate-level chemistry major. In this experiment, the aggregation of…
Descriptors: Chemistry, Science Instruction, Undergraduate Students, Laboratory Experiments
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Li, LiXin; Tian, Wei; Zhang, Jie – Biochemistry and Molecular Biology Education, 2020
In this article, we describe an in-house polymerase chain reaction-sequence specific priming (PCR-SSP) assay designed for undergraduate medical students as part of the experimental pathogen biology and immunology (EPBI) course. It screens human leukocyte antigen (HLA)-DR2 allotype from genomic DNA samples using a rapid and single-tube PCR…
Descriptors: Undergraduate Students, Medical Students, Molecular Biology, Genetics
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Taylor, Melissa A.; Loder, Danielle M.; Herr, Michael J.; Nichols, Richard A. – Anatomical Sciences Education, 2023
Many medical schools have undergone curricular reform recently. With these reforms, time spent teaching anatomy has been reduced, and there has been a general shift to a pass/fail grading system. At Indiana University School of Medicine (IUSM), a new curriculum was implemented in fall 2016. The year-long human gross anatomy course taught in 2015…
Descriptors: Educational Change, Anatomy, Medical Students, Medical Education
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Bale, Shivkumar; Singh, Ramesh – Interactive Learning Environments, 2023
This paper introduces a novel virtual method to conduct continuous distillation experiment in an undergraduate unit operation laboratory with the help of SPM 700 Distillation Column, one of the modules available in Simtronics, a commercial process operation simulator. Simtronics simulator is a powerful tool to teach process industry skills and it…
Descriptors: Engineering Education, Teaching Methods, Undergraduate Students, Laboratory Experiments
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Gupta, Yash Munnalal; Kirana, Satwika Nindya; Homchan, Somjit; Tanasarnpaiboon, Supatcharee – Biochemistry and Molecular Biology Education, 2023
The COVID-19 pandemic has forced the Bioinformatics course to switch from on-site teaching to remote learning. This shift has prompted a change in teaching methods and laboratory activities. Students need to have a basic understanding of DNA sequences and how to analyze them using custom scripts. To facilitate learning, we have modified the course…
Descriptors: Programming Languages, Teaching Methods, Computer Software, Genetics
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Sandra L. Pettit; Clifford L. Henderson – Chemical Engineering Education, 2023
Development of team skills is vital to becoming a successful and productive engineer. To prepare students for successful team-based work, they need a basic understanding of the organizational psychology underpinning teamwork and an introduction to tools and techniques to develop and sustain team effectiveness. The goal of this paper is to…
Descriptors: Teamwork, Science Instruction, Teaching Methods, Assignments
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Ru-Xin Liu; Feng Xiong; Chao Chen; Tong-Mei Ding; Shu-Yu Zhang – Journal of Chemical Education, 2023
Project-based learning is widely used in organic laboratories. This goal-oriented and inquiry-based learning model complements student-centered training. Such models focus on complicated issues or real-world problems on the frontier of chemistry. Students progress through three project phases: preproject, during the project, and postproject.…
Descriptors: Undergraduate Students, Chemistry, Science Instruction, Conservation (Environment)
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Hanbing Li; Hongyan Zhang; Wenquan Liu; Jie Huang; Kejian Lu; Jinwen Shi; Hui Jin; Wenshuai Chen; Maochang Liu – Journal of Chemical Education, 2023
In recent years, solar-powered photocatalytic water splitting for hydrogen production has drawn great attention as a method to supply clean energy and reduce environmental pollution. This approach, driven by solar energy to synthesize hydrogen gas, is completely renewable and can be used to power hydrogen fuel cells to effectively solve the global…
Descriptors: Fuels, Chemistry, Science Instruction, Undergraduate Students
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Joana F. C. Silva; Ma´rio T. S. Rosado; Teresa M. R. Maria; Pedro S. Pereira Silva; Manuela Ramos Silva; M. Ermelinda S. Euse´bio – Journal of Chemical Education, 2023
The concept of co-amorphous systems is introduced in an integrated laboratory experiment, designed for advanced chemistry students, using solvent-free, environmentally friendly mechanochemistry. The dual-drug naproxen-cimetidine co-amorphous system (NPX-CIM) is investigated as an example of the emergent field of medicinal mechanochemistry.…
Descriptors: Laboratory Experiments, Chemistry, Science Instruction, Pharmacology
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