Isolation of organic acids from large volumes of water by adsorption on macroporous resins

George R. Aiken

doi:10.1021/ba-1987-0214.ch013

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Isolation of organic acids from large volumes of water by adsorption on macroporous resins

George R. Aiken

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Abstract

Adsorption on synthetic macroporous resins, such as the Amberlite XAD series and Duolite A-7, is routinely used to isolate and concentrate organic acids from forge volumes of water. Samples as large as 24,500 L have been processed on site by using these resins. Two established extraction schemes using XAD-8 and Duolite A-7 resins are described. The choice of the appropriate resin and extraction scheme is dependent on the organic solutes of interest. The factors that affect resin performance, selectivity, and capacity for a particular solute are solution pH, resin surface area and pore size, and resin composition. The logistical problems of sample handling, filtration, and preservation are also discussed.

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George R. Aiken. 2009-07-22. Isolation of organic acids from large volumes of water by adsorption on macroporous resins. https://doi.org/10.1021/ba-1987-0214.ch013

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