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Showing 1 to 15 of 613 results Save | Export
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Shahrokh Saba; James A. Ciaccio; Pooja Grewal – Journal of Chemical Education, 2024
In this second-semester organic chemistry lab experiment, students work collaboratively using a combination of chemical synthesis and NMR spectroscopy to investigate the diastereoselectivity associated with the Meerwein-Ponndorf-Verley (MPV) reduction of two ketone substrates having carbonyl groups flanked by an [alpha]-chiral carbon with…
Descriptors: Synthesis, Scientific Concepts, Spectroscopy, College Science
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Hayley Abbiss; Armaghan Shafaei; Mark Bannister; Mary C. Boyce – Journal of Chemical Education, 2024
Short chain fatty acids (SCFAs) are produced in the gut as a result of microbial action on ingested dietary fiber and have been associated with several health benefits. Herein an undergraduate student experiment that uses gas chromatography equipped with either a flame ionization detector or mass spectrometer for the analysis and quantitation of…
Descriptors: Chemistry, Hygiene, Physiology, Spectroscopy
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Mariur Rodriguez Moreno; Nye C. Johnson; Christopher B. Stewart; Mary L. Setelin; Adam X. Wayment; Braxton M. Felix; Scott R. Burt; David J. Michaelis – Journal of Chemical Education, 2024
We describe a three-day advanced organic laboratory experience that includes the solid-phase synthesis of an unknown three amino acid polypeptide for junior/senior undergraduate chemistry majors. Students conduct a series of 1D and 2D NMR experiments (HSQC, HMBC, TOCSY) and analyze the data to identify the side chain residues of the peptide and…
Descriptors: Scientific Concepts, Science Education, Undergraduate Students, Undergraduate Study
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Hailey N. Lynch; Claire Chaz Authement; Autumn Maczko; Miranda Parker; Kaylan Beaty; Anuradha Liyana Pathiranage – Journal of Chemical Education, 2023
In this laboratory teaching experiment, commercial cannabis oils were analyzed by undergraduate organic chemistry students using gas chromatography-mass spectrometry (GC-MS) to investigate three isomeric cannabinoids commonly found in cannabis products: cannabidiol (CBD), [delta][superscript 9]-tetrahydrocannabinol ([delta][superscript 9]-THC),…
Descriptors: Spectroscopy, Marijuana, Undergraduate Students, Undergraduate Study
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Jing Cheng; Xian Li; Enming Hu; Yuanyuan Ran; Yingchun Li – Journal of Chemical Education, 2024
Molecular imprinting technology holds significant potential for applications in chemical analysis and detection. In order to integrate the fundamental knowledge of polymer chemistry, electrochemistry, and analytical chemistry with practical applications and cutting-edge research, we proposed a comprehensive experiment of the preparation,…
Descriptors: Chemistry, Experiential Learning, Science Experiments, Science Education
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Ye Jiang; Xin Sun; Guomeng Zhang; Da Han; Zhengda Yang – Journal of Chemical Education, 2024
The flue gas from waste incineration power plants contains high-level zinc species that may deactivate the catalyst for selective catalytic reduction (SCR) of nitrogen oxides (NO[subscript x]) with NH[subscript 3]. A comparison experiment was designed to investigate the effect of different types and Zn/Ce molar ratios on the performance of…
Descriptors: Science Education, Scientific Concepts, Science Laboratories, Science Experiments
Holly D. Bendorf; Gricelda Arredondo – Journal of Chemical Education, 2023
In this laboratory experiment, first-semester organic chemistry students use mechanistic reasoning to propose possible outcomes for the reaction of vanillin isobutyrate with a hydride source. The students subsequently run the reaction, isolate the product, and acquire its infrared spectrum. The experiment provides students with the opportunity to…
Descriptors: Spectroscopy, Science Experiments, Science Laboratories, Organic Chemistry
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Alexander J. Wright; Dave Colclough; Hazel Harris; Stefano C. G. Biagini – Journal of Chemical Education, 2023
In this paper, we present a concise and technique-heavy route to the synthesis of dimedone for a second-year organic chemistry curriculum. Our preparation of dimedone guides students through a Michael addition followed by a Dieckmann cyclization, basic ester hydrolysis, and thermal decarboxylation, while allowing time for mechanistic discussion…
Descriptors: Science Instruction, Science Laboratories, Organic Chemistry, Undergraduate Study
Adrian Saura-Sanmartin; Jorge Lopez-Sanchez; Carmen Lopez-Leonardo; Aurelia Pastor; Jose Berna – Journal of Chemical Education, 2023
The synthesis of a [2]rotaxane through three- or five-component coupling reactions has been adapted to an organic chemistry experiment for upper-division students. The experimental procedure addresses the search for the most favorable reaction conditions for the synthesis of the interlocked compound, which is obtained in a yield of up to 71%.…
Descriptors: Scientific Concepts, Organic Chemistry, Science Experiments, Spectroscopy
Ifat Parveen; Michael Rose; Helen C. Phillips; Stephen E. Flower; Timothy J. Woodman; Cameron A. Garty; Michael D. Threadgill – Journal of Chemical Education, 2023
An understanding of basic organic chemical reactivity is key for many biosciences students. The reactivities of different carbonyl groups affect their function in many biomolecules. A practical class, the two-step synthesis of paracetamol, has been devised to illustrate the electrophilic reactivities of carbonyls, which was covered in the…
Descriptors: Undergraduate Study, College Science, Synthesis, Scientific Concepts
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Ricca, John G.; Duersch, Bobby G.; Plaza, Tito S. Sempértegui; Haky, Jerome E. – Journal of Chemical Education, 2022
Elemental analysis is performed in a variety of ways in food and environmental sciences; thus, we have designed an activity in which students gain experience with research-level lab techniques in a real-world context through the quantification of key elements in breakfast cereals using microwave plasma optical emission spectroscopy (MP-OES). The…
Descriptors: Science Instruction, Science Experiments, Science Process Skills, Chemistry
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Giancaspro, Joseph; Scollan, Patrick; Rosario, Juan; Miller, Elizabeth; Braziel, Samuel; Lee, Sunghee – Biochemistry and Molecular Biology Education, 2022
In an upper-division interdisciplinary laboratory experiment, students use Raman spectroscopy to highlight how the overall structure and conformational order of lipid bilayers can be influenced by their individual phospholipid composition. Students prepare a supported lipid bilayer, as a model cell membrane, by spreading liposomes made of various…
Descriptors: Science Experiments, Laboratory Experiments, Interdisciplinary Approach, Spectroscopy
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Ioana Nicolau; Anca Paun; Codrut¸a C. Popescu; Niculina D. Ha?dade; Mihaela Matache – Journal of Chemical Education, 2023
This communication describes an updated experiment of peptide synthesis, involving determination of the loading capacity of a Fmoc-protected amino functionalized resin using UV-vis spectroscopy and a subsequent synthesis of a dipeptide in order to exemplify the experimental solid-phase synthesis procedure as an alternative technique in organic…
Descriptors: Organic Chemistry, Science Experiments, Spectroscopy, Biochemistry
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Will Jimy Quintero; Mo´nica Constanza A´vila; Cristian Ochoa-Puentes – Journal of Chemical Education, 2023
Cycloadditions in combination with multicomponent reactions are among the most valuable synthetic tools used by organic chemists to construct cyclic and heterocyclic compounds in a straightforward way. Although cycloadditions, such as the Diels--Alder reaction, are mainly covered in basic and advanced organic courses for undergraduate students,…
Descriptors: Science Instruction, Organic Chemistry, College Science, Undergraduate Students
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Busovský, Damián; Krízová, Michaela; Kríz, Jan; Loskot, Jan; Studnicka, Filip; Slégrová, Leontýna; Slégr, Jan – Physics Education, 2022
Undergraduate physics laboratory exercises are very important in shaping students' attitude to science, especially for future teachers. Recently, it is necessary to look for ways to easily create large quantities of experimental sets, not only for institutional use, but also for sets that can be produced in large quantities and distributed for use…
Descriptors: Science Instruction, Undergraduate Study, College Science, Science Laboratories
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