A New Glow on the Chromatography of M&amp;M Candies

Birdwhistell, K. R.; Spence, Thomas G.

doi:10.1021/ed079p847

Cited by 6 publications

(6 citation statements)

References 5 publications

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“…The ability to separate mixtures of materials based on a difference in physical properties underlies the science of chromatography, and this experiment was prefaced with a discussion of chromatography and ways in which chromatographic principles are used. − Participants then dissolved the candy coatings of hard colored candy − using salt water. After obtaining a strongly colored solution, paper chromatography was used to separate the solution into its constituent pigments (Figure ).…”

Section: Program Informationmentioning

confidence: 99%

Sweet, Sweet Science: Addressing the Gender Gap in STEM Disciplines through a One-Day High School Program in Sugar Chemistry

Levine

DiScenza

2018

J. Chem. Educ.

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Reported herein is the design, implementation, and evaluation of a full-day outreach program for high school girls that focuses entirely on sugar-related activities. The program, which we ran in February 2016 and February 2017, included multiple hands-on sugar-based experiments to increase the participants' interest in and enthusiasm for science. The success of the program was quantitatively evaluated through the administration of pre-camp and post-camp surveys. Overall, the survey results indicated a marked improvement in responses, which corresponds to strong success in changing the participants' attitudes regarding the practical applicability of science and in increasing their interest in pursuing scientific careers.

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Section: Program Informationmentioning

confidence: 99%

Sweet, Sweet Science: Addressing the Gender Gap in STEM Disciplines through a One-Day High School Program in Sugar Chemistry

Levine

DiScenza

2018

J. Chem. Educ.

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“…Two common experiments concerning food dyes appear in this Journal : chromatography − and spectroscopy. − Our students conduct a paper chromatography experiment, determining the components present in each dye. They correlate these results with UV–vis spectroscopy, investigating how absorbed wavelengths relate to colors (Figure ).…”

Section: Colormentioning

confidence: 99%

Chemistry of Candy: A Sweet Approach to Teaching Nonscience Majors

et al. 2018

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Candy, an everyday treat, is a convenient theme for teaching chemistry. Making candy incorporates solution concentration, colligative properties, and phase transformations while flavoring and color reflect synthesis or extraction. In this article, a nonscience major laboratory course on candy chemistry is presented. The course combines laboratory experiments and candymaking exercises, illustrating general chemistry principles and data collection. For example, students investigate crystal formation with rock candy and fudge, browning reactions with UV−vis spectroscopy and caramels, enzyme kinetics with polarimetry and cherry cordials, and freezing point depression with temperature measurements and ice cream. Imitation and natural flavors are obtained through Fischer esterification and distillation, respectively, while colorants are characterized through chromatography and spectroscopy. The course incorporates statistics through sensory analysis and color distribution. Student assessment and feedback as well as a poster/tasting session are also described.

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“…Chemical reactions involving chemiluminescence are some of the most exocharmic reactions known (1,2). In addition, experiments that incorporate the chromatographic separation of the colorful components of a mixture are of great interest to scientists of all ages (3)(4)(5)(6)(7)(8)(9)(10). A simple exercise is described featuring the separation of the contents of an activated lightstick using a chromatography column prepared as described previously (11).…”

Section: In the Laboratorymentioning

confidence: 99%

Glowmatography

2009

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The exocharmic glow of chemiluminescent lightsticks captivates students of all ages. The chemistry behind lightsticks is used to convincingly teach the practice and theory of chromatography. In extension to the chromatographic procedure described, dye(s) collected in the eluate during the chromatographic process are analyzed using absorption and fluorescence spectroscopy. Thus, the mystery of the lightstick becomes a useful introduction to undergraduate topics such as chromatography, intermolecular forces, electronic absorption and emission spectroscopy, and catalysis. The parsing out of such an information rich system allows the instructor to adopt this demonstration or laboratory to the chemical education level and chemical discipline of the educational audience.

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A New Glow on the Chromatography of M&M Candies

Cited by 6 publications

References 5 publications

Sweet, Sweet Science: Addressing the Gender Gap in STEM Disciplines through a One-Day High School Program in Sugar Chemistry

Sweet, Sweet Science: Addressing the Gender Gap in STEM Disciplines through a One-Day High School Program in Sugar Chemistry

Chemistry of Candy: A Sweet Approach to Teaching Nonscience Majors

Glowmatography

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