Containment of Spray Reagents in TLC Spot Detection

Josef G. Krause
Department of Chemistry, Niagara University, NY 14109
J. Chem. Educ., 1996, 73 (10), p 979
DOI: 10.1021/ed073p979
Publication Date (Web): October 1, 1996

Abstract

A recent suggestion to visualize spots on thin layer plates by applying phosphomolybdic acid reagent with a cotton ball (1) may not be suitable for all visualization reagents especially concentrated sulfuric acid. If spraying a reagent with a power pac type device is preferred for this or some other reason, we suggest spraying the reagent inside of a twist tie-sealed, clear-plastic kitchen garbage bag. In this way, spray reagents are completely contained obviating the need for spraying the plates in a fume hood, and cleanup is simple.

Literature Cited

1. Lee, A. W. M.; Zengpei, Z. J. Chem. Educ., 1996, 73, 358.

Keywords (Audience):

Second-Year Undergraduate

Keywords (Domain):

Laboratory Instruction

Keywords (Subject):

Separation Science
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  • Received: August 03, 2009

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