JPC - Journal of Planar Chromatography - Modern TLC
Volume/Issue:
Volume 16: Issue 5
A new distributor for half-way development
Authors: Mengning Lan 1 , Dongyuan Wang 1 , and Jing Han 1
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  • 1 Shenyang Pharmaceutical University Department of Analytical Chemistry Shenyang 110016 P.R. China
DOI:
https://doi.org/10.1556/jpc.16.2003.5.14
Page Count:
402–404
Publication Date:
01 Oct 2003
Online Publication Date:
08 Mar 2007
Article Category:
Research Article
Restricted access

A new distributor which can be used more perfectly for half-way development is described in this paper. The distributor is made from two microscope slides which are specially treated and glued together like a funnel. The mobile phase can be delivered to the new distributor by means of a syringe; the solution fills the capillary crack immediately and then leaks on to the thin layer plate. Development can then begin at the same starting line. Compared with the old device the distance traveled by the mobile-phase front before it becomes even (which we denote the ‘even distance’) is much lower, so the new device is more suitable for re-chromatography of two close spots. Mixtures of dyes have been used to verify this supposition, with satisfactory results.

  • Dongyuan Wang and Yongbin Wang , A New Thin-Layer Development Method (in Chinese), Paper presented at the 12th National Chromatography Symposium, Hangzhou, China, 1999, p. 773.

  • Ping Su, Dongyuan Wang , and Mengning Lan , J. Planar Chromatogr. 14 (2001) 203–207.

    Lan M. , '' (2001 ) 14 J. Planar Chromatogr. : 203 -207.

  • Mengning Lan, Dongyuan Wang , and Jing Han , J. Planar Chromatogr. 15 (2002) 144–146.

    Han J. , '' (2002 ) 15 J. Planar Chromatogr. : 144 -146.

  • Mengning Lan, Dongyuan Wang, Wei Wei , and Wei Lu , Multidimensional Relay Development in TLC, J. Planar Chromatogr., accepted for publication.

  • Jing Han, Dongyuan Wang, Dan Wang, Yuping Wang, Mi Zhou, Ledao Li , and Hongxia Zhang , J. Chromatogr. A 1002 (2003) 213–219.

    Zhang H. , '' (2003 ) 1002 J. Chromatogr. A : 213 -219.
Cover JPC - Journal of Planar Chromatography - Modern TLC
JPC - Journal of Planar Chromatography - Modern TLC
Print ISSN:
0933-4173
Online ISSN:
1789-0993
Keywords:
TLC; Half-way development; Funnel distributor; Slope distributor; Even distance

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