Phase equilibrium method for determination of desorption efficiencies.

Autor: Dommer RA, Melcher RG
Jazyk: angličtina
Zdroj: American Industrial Hygiene Association journal [Am Ind Hyg Assoc J] 1978 Mar; Vol. 39 (3), pp. 240-6.
DOI: 10.1080/0002889778507748
Abstrakt: The principle of phase equilibrium is applied to the determination of desorption efficiencies of organic compounds collected on activated charcoal. The method depends on the existance of a true equilibrium distribution between the adsorbed and solution phases of organics in the desorption solvent--adsorbent matrix. Improved and more consistant desorption efficiencies are obtained by considering the effects of variations in the adsorbent--solvent ratio and equilibrium temperature at time of analysis. The technique may also provide early detection of interaction or reaction of the sorbate on the adsorbent surface.
Databáze: MEDLINE