Combination of paper or thin-layer chromatography with other chromatographic principles

✍ Scribed by Jaroslav Janák

• Publisher: Elsevier Science
• Year: 1970
• Tongue: English
• Weight: 1020 KB
• Volume: 48
• Category: Article
• ISSN: 1873-3778
• DOI: 10.1016/s0021-9673(01)85557-6

✦ Synopsis

Combination of planar (thin-layer and paper) and column (gas and liquid) chromatographic techniques is discussed in detail. Use of gas chromatography as a sampling technique for thin-layer and paper chromatography is shown in the results as a common principle of a new two-dimensional chromatographic development. Liquid (column) chromatography, on its new level, is discussed in this connection, too. A critical search of adsorbents for thin-layer chromatography is given, and new sorbents are introduced. From some examples of Rp values of several model substances measured on thin layers of organic porous polymers like Porapak Q, R, S, and T as well as on thin layers of porous glass beads with chemically modified surface like Durapaks, the prospect of applying such materials in thin-layer chromatography is shown and discussed.