Determination of phenol in industrial waste water by isotachophoresis

Pfeifer, Peter; Bonn, Günther K.; Bobleter, O.

doi:10.1007/bf00594992

Cited by 11 publications

(3 citation statements)

References 9 publications

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“…w x Pfeifer et al 29 were the first to describe the separation of phenols using ITP. The separation was carried out using a two-column system and a gradient detector.…”

Section: Organic Analysismentioning

confidence: 99%

Isotachophoresis: Trials, tribulations, and trends in trace analysis of organic and inorganic pollutants

et al. 1998

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The aim of this article is to summarize the present state of isotachophoresis (ITP) and its applications in organic and inorganic environmental trace analyses. The design and operation of an isotachophoretic instrumentation for the determination of pollutants is discussed. Application of the closed system to the analysis of drinking water, surface waters and industrial waste water is reviewed. The emphasis has been laid on the description of various application areas, most of them are illustrated by several characteristic practical examples of separation. Examples covering pollutants such as organic acids, phenols, nitrophenols, aldehydes, quaternary ammonium compounds, triazine herbicides, pyrethroid insecticides and separation of inorganic anions in mineral waters, surface and well waters and sewage are illustrated. The determination of inorganic cations in two different modes of operation such as anionic mode and in a cationic mode of operation is also covered. © 1998 John Wiley & Sons, Inc. J Micro Sep 10: 567–579, 1998

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“…w x Pfeifer et al 29 were the first to describe the separation of phenols using ITP. The separation was carried out using a two-column system and a gradient detector.…”

Section: Organic Analysismentioning

confidence: 99%

Isotachophoresis: Trials, tribulations, and trends in trace analysis of organic and inorganic pollutants

et al. 1998

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“…The main sources of these species are combustion processes, chemical factories, and industrial and sewage effluents ( 3 , 4). The occurrence of such compounds in the aquatic environment has been known to cause severe health problems to animals, birds, and humans (5,6). The removal or reduction of these pollutants to an acceptable concentration by extraction with organic solvents, steam distillation, oxidation reaction, adsorption on carbon, reversed liquid-liquid partition filter chromatography, or the use of cellulose triacetate membrane filters has been investigated (7)(8)(9)(10)(11).…”

Section: Introductionmentioning

confidence: 99%

Preconcentration and Separation of Phenols from Water by Polyurethane Foams

El-Shahawi¹,

Farag

Mostafa

1994

Separation Science and Technology

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The application of untreated and polyurethane foams treated with tributylphosphate (TBP) in the preconcentration of some phenols from water via static and flow experiments was carried out. Batch experiments with the TBP-loaded foams showed a good affinity toward extraction of the tested compounds as compared to the untreated foams. The use of the unloaded and TBP loaded foams was also employed in column modes for the preconcentration of the phenols used. The effect of extraction media, phenol concentration, time of shaking, temperature, sample volume, ionic strength, eluting solvent, and flow rate on the retention efficiency of the compounds by the foam were investigated. The extraction efficiency and the recovery of the compounds from the foam material by the column were obtained up to 100%. Sorption of the compounds by the foam was brought by a solvent extraction mechanism. The pK, and the molecular weight of the absorbates play an important role in the sorption process. The height equivalent to 290 EL-SHAHAWI, FARAG, AND MOSTAFA theoretical plates (HETP) for thk foam column were obtained from the Glueckauf equation and the breakthrough capacity curve, and were found to equal I .8-2.05 mm at flow rates up to 10 cm'.min-'. Attempts were also made to separate some of the tested phenols by dynamic techniques.

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“…Routine analysis of phenols can be carried out using chromatographic methods such as GC, , HPLC, , SFC, and ITP. , In recent years, a growing number of reports deal with the application of capillary electrophoresis (CE) for the separation of phenolic compounds. − …”

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confidence: 99%

Separation of Priority Pollutant Phenols with Coelectroosmotic Capillary Electrophoresis

Zemann

Volgger

1997

Anal. Chem.

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Various mixtures of phenolic compounds, most of them being priority pollutant phenols, are separated by coelectroosmotic capillary electrophoresis. To obtain short separation times a codirectional movement of the anionic phenolates and the electroosmotic flow (EOF) is established by adding a polycationic EOF modifier to the alkaline buffer electrolyte. To increase the selectivity of the separation and the resolution between the solutes, organic solvent mixtures are added to the separation buffer. Furthermore, coelectroosmotic MECC of phenols using cetyltrimethylammonium bromide (CTAB) as pseudo-stationary phase and acetonitrile as organic modifier is performed. The developed methods are used for the fast separation of the 9 cresol and xylenol isomers, as well as mixtures of 18 chlorophenols, 11 phenols (acid extractable mixture, EPA M-625A), and 9 phenols (EPA M-8040B-R). Separation mechanisms are discussed on the basis of solvation effects of the phenolic solutes. In the case of CTAB-MECC the influence of the CTAB concentration and of acetonitrile on the solubilization of the phenols is investigated.

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Determination of phenol in industrial waste water by isotachophoresis

Cited by 11 publications

References 9 publications

Isotachophoresis: Trials, tribulations, and trends in trace analysis of organic and inorganic pollutants

Isotachophoresis: Trials, tribulations, and trends in trace analysis of organic and inorganic pollutants

Preconcentration and Separation of Phenols from Water by Polyurethane Foams

Separation of Priority Pollutant Phenols with Coelectroosmotic Capillary Electrophoresis

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