Stationary Phases for Thin-Layer Chromatography
نویسندگان
چکیده
منابع مشابه
Stationary phases for thin-layer chromatography.
This paper presents a review of the literature concerning development of the stationary phases for thin-layer chromatography (TLC) in the last ten years. The silica gel remains the most important adsorbent for TLC separation. The kinetic properties of the silica-gel thin layer and the new TLC plates have been presented. Other materials used as stationary phase were alumina, zirconium oxide, Flo...
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The main goal of this paper is to demonstrate that photothermal method is an effective tool for detection of geometrical and structural non-uniformities within optically non-opaque, light scattering, planar multilayer structures. The investigated objects were plates of glass coated with silica, cellulose, aluminum oxide, polyamide or octadecylsilane. The thickness of coating ranged from 100 to ...
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Selected alkaloids are chromatographed on cyanopropyl-silica thin layers using various nonaqueous and aqueous eluents. Because of the strong retention of these basic compounds, nonaqueous eluents containing medium polar diluents, strongly polar modifiers, and silanol blockers (ammonia or diethylamine) are required for separation. Likewise, aqueous eluents containing modifiers (acetonitrile, met...
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phy 665: 243. Junk GA, Richard JJ, Grieser MD et al. (1974) Use of Macroreticular resins in the analysis of water for trace organic contaminants. Journal of Chromatography 99: 745. Puig D and BarceloH D (1995) Off-line and on-line solidphase extraction followed by liquid chromatography for the determination of priority phenols in natural waters. Chromatographia 40: 435. Puig D and BarceloH D (1...
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Synthetic dyes comprise a large group of organic, organic salt and organometallic compounds which number in the thousands. Most individual dyes are assigned colour index (CI) numbers which helps to identify structure and properties as well as identity where a series of names have been used by the manufacturers for the same dye. Pigments are also listed and can be either organic or inorganic in ...
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ژورنال
عنوان ژورنال: Journal of Chromatographic Science
سال: 2002
ISSN: 0021-9665,1945-239X
DOI: 10.1093/chromsci/40.10.538