Making radial chromatography creative chromatography: For fun flowers on fabrics

Becker, Robert R.; Ihde, John; Cox, K.D.; Sarquis, Jerry L.

doi:10.1021/ed069p979

Cited by 6 publications

(6 citation statements)

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“…To understand the concept of separation, students performed a radial chromatography separation of water-soluble black ink into its component parts (17). Each collaborative group devised a plan about how to separate a five-component mixture consisting of iron filings, sand, benzoic acid, salt, and sawdust.…”

Section: Module 3 Laboratory Separationsmentioning

confidence: 99%

Collaborative Distance Education: The Iowa Chemistry Education Alliance

Burke

Greenbowe

1998

J. Chem. Educ.

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The Iowa Chemistry Education Alliance is a consortium of four chemistry instructors from central Iowa high schools, several members of the Iowa State University faculty, and consultants from an Iowa Area Education Agency. The group was formed to develop a set of concept-oriented, problem-solving, multimedia curriculum modules that could be used collaboratively in a distance education environment. Students and teachers alike used Iowaâ€™s statewide two-way interactive fiber optic system, the Iowa Communications Network (ICN). The ICN connects Iowa's three public universities, community colleges, most private colleges, and most high schools. There are more than 400 classrooms connected to the ICN. This report provides an overview of how modern technology is used to engage teachers and students in collaborative distance education.

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Section: Module 3 Laboratory Separationsmentioning

confidence: 99%

Collaborative Distance Education: The Iowa Chemistry Education Alliance

Burke

Greenbowe

1998

J. Chem. Educ.

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“…1−8 For example, chromatography has been used to create faux flowers, 1,2 to explore what dyes are in candy, 1,3,4 and to decorate T-shirts. 1,2,5 These colorful experiments tend to be popular at outreach events and science camps 9 as well as in middle-school, high-school, and introductory-level chemistry courses. 10 It is especially attractive to incorporate inexpensive, familiar, and easily obtainable supplies into experimental protocols intended for these settings.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Chromatographic experiments with an aesthetic quality have spawned several publications that explore fun and artistic aspects of chromatography. − For example, chromatography has been used to create faux flowers, , to explore what dyes are in candy, ,, and to decorate T-shirts. ,, These colorful experiments tend to be popular at outreach events and science camps as well as in middle-school, high-school, and introductory-level chemistry courses . It is especially attractive to incorporate inexpensive, familiar, and easily obtainable supplies into experimental protocols intended for these settings.…”

Section: Introductionmentioning

confidence: 99%

Simple Glowmatography: Chromatographic Separation of Glow-Stick Dyes Using Chalk

2019

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An experiment is described that uses easily obtained materials (glow sticks, chalk, and acetone or alcohol) to separate the dyes contained in glow sticks that actively emit chemiluminescent light. The experiment is very easy to carry out, making it amenable for students to perform in laboratory or outreach settings. The separation occurs fast enough that the experiment can be conducted as an in-class demonstration.

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“…Radial chromatography (also known as centrifugal thin-layer chromatography) has found some, but not widespread, application in organic chemistry laboratory curricula. − The technique offers several advantages over traditional column chromatography including ease of operation, low solvent consumption, good reproducibility, high separation efficiency, and a reusable stationary phase (silica plates can be used multiple times). In addition, the technique is automated and allows for rapid separations when compared to traditional column experiments.…”

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confidence: 99%

Radial Chromatography for the Separation of Nitroaniline Isomers

Miller

Case

2011

J. Chem. Educ.

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Separation techniques are usually presented in the undergraduate organic laboratory to teach students how to purify and isolate compounds. Often the concept of liquid chromatography is introduced by having students create “silica gel columns” to separate components of a reaction mixture. Although useful, column chromatography can be a laborious technique for students to perform. The separation efficiency can be compromised if students do not prepare the column correctly, and the time required to separate substances can extend beyond a typical laboratory period. Herein, the use of radial chromatography (centrifugal thin-layer chromatography) as an alternative to the traditional column chromatography technique utilized in many teaching laboratories is discussed. Radial chromatography can be used to introduce the principles that underlie liquid chromatography, with the added benefit of providing a relatively fast and highly efficient separation. An experiment for the efficient separation of a mixture containing 2-nitroaniline and 3-nitroanilne using radial chromatography is presented. Typical student results show that each substance can be collected with a high percent recovery (∼70–80%). Furthermore, the melting range of each isolated substance is found to be in agreement with literature values. The separation can be completed in 40–50 min once the sample has been loaded.

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Making radial chromatography creative chromatography: For fun flowers on fabrics

Abstract: Doing chromatographic separations on T-shirts and creating flower patterns on filter paper.

Cited by 6 publications

References 0 publications

Collaborative Distance Education: The Iowa Chemistry Education Alliance

Collaborative Distance Education: The Iowa Chemistry Education Alliance

Simple Glowmatography: Chromatographic Separation of Glow-Stick Dyes Using Chalk

Radial Chromatography for the Separation of Nitroaniline Isomers

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