Polyurethane foams and microspheres in analytical chemistry. Improved liquid-solid, gas-solid and liquid-liquid contact via a new geometry of the solid phase

T. Braun, A. B. Farag

Research output: Contribution to journalArticle

121 Citations (Scopus)

Abstract

This review covers the following aspects: the preparation and properties of polyurethane foams and of open-pore polyurethane microspheres; the use of unloaded polyurethane foams for the separation and enrichment of inorganic and organic species in aqueous solution, and for the collection of pesticide vapours in air; and the application of polyurethane foams with physically immobilized reagents (hydrophobie reagents such as organic extractants and chelating agents, heterogeneous ion-exchange foams and inorganic precipitates). Polyurethane foams with anchored functional groups and specially treated polyurethane foams are then discussed. Finally the use of open-pore polyurethane microspheres in gas-solid chromatography, gas-liquid chromatography, and low pressure liquid chromatography is outlined.

Original languageEnglish
Pages (from-to)1-36
Number of pages36
JournalAnalytica Chimica Acta
Volume99
Issue number1
DOIs
Publication statusPublished - Jul 1 1978

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Microspheres
foam
Contacts (fluid mechanics)
Gases
geometry
liquid
Geometry
Liquids
Chemical analysis
gas
Polyurethanes
Liquid chromatography
Gas Chromatography
liquid chromatography
Ion Exchange
Chelating Agents
chelating agent
Pesticides
Liquid Chromatography
Gas chromatography

ASJC Scopus subject areas

  • Biochemistry
  • Analytical Chemistry
  • Spectroscopy
  • Environmental Chemistry

Cite this

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