Potential of complexones as ligands for the determination of platinum metals by ion-pair HPLCстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The retention of palladium(II), platinum(II), rhodium(III), and ruthenium(IV) chelates of iminodiacetic, nitrilotriacetic, and trans-1,2-cyclohexanediaminetetraacetic acids is studied based on the nature and concentration of ion- pairing reagent (tetraethyl- and tetrabutylammonium bromides), the pH and the concentration of acetonitrile in the mobile phase. Conditions are chosen for the separation of binary mixtures Ir-Pd, Ir-Pt, Rh-Pd, Rh-Pt as chelates of iminodiacetic acid and for the separation of platinum(II) from other platinum and nonferrous metals as its chelate of 1,2-cyclohexanediaminetetraacetic acid. A procedure for determining Pt(II) in synthetic solutions is developed.