El-Shahawi, M S <br/><br/>
Chemical speciation of chromium(III) and (VI) using phosphonium cation impregnated polyurethane foams prior to their spectrometric determination.  [electronic resource] 

 -  Analytical sciences : the international journal of the Japan Society for Analytical Chemistry  2011 
 - 757 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1348-2246 
<br/><br/><label>Standard No.: </label>10.2116/analsci.27.757  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Analytic Sample Preparation Methods--methods<br/>Chromatography<br/>Chromium--analysis<br/>Onium Compounds--chemistry<br/>Organophosphorus Compounds--chemistry<br/>Polyurethanes--chemistry<br/>Spectrum Analysis<br/>Waste Disposal, Fluid