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Abstract
Multiple linear regression analysis for the retention data of neutral metal complexes of nickel, copper and palladium was carried out. Several columns (Microbondapack C18, Partisil-10-ODS, Alltech RP-8) and two ternary (water-methanol-acetonitrile-and water-methanol-tetrahydrofuran) and a quaternary (water-methanol-acetonitrile-tetrahydrofuran) solvent were studied.
It was found that the palladium complex behaved differently than the nickel and copper complexes and needed a 21% methanol, 21% acetonitrile, 58% water solvent system in order to elute halfway between the nickel and copper complex.