Book Chapter10.1016/S0301-4770(08)61183-5
Chapter 19 Phenols
J. Churatek,J. Houpek +1 more
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TL;DR: In this paper, an important role in the separation of phenols and their derivatives has been played by gel chromatography on hydrophilic and organophilic gels, and in relatively polar solvents.
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Abstract: Publisher Summary In recent years, an important role in the separation of phenols and their derivatives has been played by gel chromatography on hydrophilic and organophilic gels, and in relatively polar solvents. The effects of the shape and size of the molecule and the effect of solvation of the phenolic hydroxyl group also influence the separation. The separation of phenols can also based on the fact that the phenolic hydroxyl group forms bonds with the amide group present in—for example, polyamide gels. The bond strength depends on the number and positions of the hydroxyl groups in the phenol molecule. The capacity of polyamides is usually relatively high, thus making these gels suitable for the separation of isomers. The eluotropic series of solvents used for the elution of phenols from a polyamide column is represented by water, ethanol, methanol, acetone, formamide, and dimethylformamide. With water, elution occurred according to the number of hydroxyl groups contained in the phenol.
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Citations
Highly sensitive solid-state fluorescent sensor immobilized on silica nanoparticles for direct detection dimethyl phenol in seawater samples
TL;DR: In this paper, Europium(III)-2-aminoterphthalate complex Eu2-(ATPh)3 was prepared and successfully immobilized on mesoporous silica nanosphere (MSNs) to form a solid sensor and then used for fluorometric detection of 2,6 dimethyl phenol under suitable conditions.
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Efficient dual sensor of alternate nanomaterials for sensitive and rapid monitoring of ultra-trace phenols in sea water
TL;DR: In this paper, the mesoporous silica and organic ligand of 4-amino antipyrine (4-AAP) was successfully conjugated onto the nanosphere and then captured the phenols under suitable conditions.
References
Quantitative separations of higher fatty acid methyl esters by adsorption chromatography on silica impregnated with silver nitrate
TL;DR: A chromatographic adsorbent for the separation of geometric isomers of fatty acid methyl esters was developed in this article, which consists of silicic acid impregnated with silver nitrate.
211
Gel permeation chromatography. III. Molecular shape versus elution
J. G. Hendrickson,J. C. Moore +1 more
TL;DR: In this article, rules were evolved to predict elution of linear, branched, and polar compounds in GPC, based on testing of 130 compounds, and data for all but a few compounds correlated onto a single calibration line.
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Über einige Thymolderivate aus Gaillardia- und Helenium-Arten
TL;DR: The Wurzeln von Gaillardia and Helenium-Arten enthalten in relativ groser Menge viele schwer trennbare Ester, die durch ihre Spektren und Abbaureaktionen als mehr oder weniger stark abgewandelte Derivate des Thymols (1, 2, 7, 8, 11, 12, 14, 15, 16, 17) erkannt wurden as discussed by the authors.
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Über die Gerbstoffe der Fichtenrinde, III. Chromatographische Trennung von Gerbstoffen an Einer Polyamidsäule. Isolierung Eines Zweiten Aglucons aus Dem Fichtenrindengerbstoff
TL;DR: Das Aglucongemisch des essigesterloslichen Fichtenrindengerbstoffes wurde an einer Polymidsaule in 6 Komponenten aufgetrennt as mentioned in this paper.
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Präparative und analytische Trennung organischer Verbindungen durch Chromatographie an Polyamid
Horst Endres,Helmut Hörmann +1 more
TL;DR: Chinone reagieren irreversibel mit den freien Aminogruppen des Polyamids, wohl aber die Phenole as discussed by the authors. But Chinone werden Chinone nicht zuruckgehalten.
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