Quasi-spherical solid polymer membranes in separation chemistry: polyurethane foams as sorbents. Recent advances

Polyurethane foams as solid chromogenic reagents for diffuse reflectance spectroscopy

“…Several review articles have been published on the use of PUF in inorganic and organic analysis [1,2,3,4].…”

Diffuse Reflectance Spectroscopic Determination of Phosphate with Applications of Chromaticity Coordinates and Color Temperature

“…The enrichment techniques depending on the solid-liquid interaction, have proved to be more advantageous than those depending on a liquid-liquid interaction, being faster, safer and less expensive. Polyurethane foam (PUF) represents a solid sorbent 8 that is convenient for the enrichment of many organic 9,10 and inorganic [11][12][13] species from aqueous media, and is commercially available for solid phase micro-extraction techniques. A direct measurement of the sorbed species in the matrix of the solid sorbent offers the advantage of avoiding the loss usually encountered during elution of the analyte from the sorbent, and simplifies the analytical procedure.…”

Evaluation of the hydrophobicity of polyurethane foams

“…Great achievements in this area are presented in a monograph 1 and reviews. [2][3][4] To describe the sorption of metal acidocomplexes, some mechanisms (a cation-chelated mechanism, ligand connection or exchange and extraction 1,5 ) are proposed.…”