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ERIC Number: EJ936782
Record Type: Journal
Publication Date: 2011-May
Pages: 2
Abstractor: ERIC
Reference Count: N/A
ISSN: ISSN-0021-9584
A Simple and Inexpensive Capillary Holder for Thin-Layer Chromatography
Pintea, Beniamin-Nicolae V.
Journal of Chemical Education, v88 n5 p673-674 May 2011
Thin-layer chromatography (TLC) is a widely used method of qualitative analysis in organic synthesis, as it uniquely combines low cost, rapidity, simplicity, versatility, small quantities of sample and low detection limits. The simplest and most economical method for the application of samples onto TLC plates is by hand, using glass capillaries. In certain cases, for example, when monitoring a reaction conducted in a large flask, especially when direct spotting is applicable (i.e., the sample taken from the reaction mixture is applied directly on the TLC plate), a device that can be used for both sample removal and application is useful and makes the analysis simpler and faster. A usable tool should be long enough to reach the reaction mixture and slim enough to fit easily through a 14/23-flask neck. This article describes a simple and inexpensive capillary holder for applying samples onto TLC plates. (Contains 2 tables and 2 figures.)
Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: High Schools; Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Romania