Acetylacetonates liquid chromatography

Ichinaka et al. [309] determined these elements in acetylacetone extracts of potable waters by high performance liquid chromatography. 

In addition to the MIP (P-48) designed to selectively retain 28, reference polymers were prepared including polymers containing only cobalt (II) acetate (P 9), only 28 (P-50), acetylacetonate-cobalt (II) acetate complex (P-51), and no imprint species (P-52). All polymers contained divinylbenzene and styrene as cross-linking agents, 4-vinylpyridine as the functional monomer, and AIBN as the initiator. Polymers were then ground, sieved, loaded into PTFE-lined liquid chromatography columns, and washed with EDTA buffer to ensure the removal of solvent-accessible metal ions. 

Separation of six -diketonate-metal chelates by HPLC was first carried out by liquid-liquid partition chromatography involving water-ethanol-2,2,4-trimethylpentane. Of the examined acetylacetonates of Be(II), Al(III), Cr(III), Fe(III), Co(III), Ni(II), Cu(II), Zn(II), Zr(IV) and Ru(III), they separated four-component mixmres within 25 minutes. Because of dissociation of the chelates on the column, acacH had to be included in the eluent Successful separation of S-diketonate chelates by normal phase chromatography was demonstrated also by other investigators ... 

Acetic add, frons-cyclohexanediaminetetra-metal complexes, 554 Acetic add, ethylenediaminetetra-in analysis, 522 masking, 558 metal complexes, 554 Acetic acid, iminodi-metal complexes, 554 Acetic acid, nitrilotri-metal complexes titrimetry, 554 Acetoacetic add ethyl ester bromination, 419 Acetone, acetyl-deprotonation metal complexes, 419 metal complexes reactions, 422 Acetone, selenoyl-liquid-liquid extraction, 544 Acetone, thenoyltrifluoro-liquid-liquid extraction, 544 Acetone, trifluorothenoyl-in analysis, 523 Acetonitrile electrochemistry in, 493 exchange reactions, 286 metal complexes hydrolysis, 428 Acetylacetone complexes, 22 liquid-liquid extraction, 543 Acetylacetone, hexafiuorothio-metal complexes gas chromatography, 560 Acetylactone, trifluorothio-metal complexes gas chromatography, 560 Acetylation metal complexes, 421 Acetylenedicarboxylic add dimethyl ester cycloaddition reactions, 458 Acid alizarin black SN metallochromic indicator, 556 Actinoids... 

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