“…Numerous papers have been published on the chromatographic separation of precious elements and related metal ions: the chromatography of Re(VII) has been reviewed (485); Rd(VII) has been determined by TLC (484, 436); Os was separated as (OsCle)2-by paper chromatography from other platinum metals (905); TLC separation of Pt metals on cellulose adsorbent (432); the separation of Re, Mo, V, and W on alumina thin-layers (438); separation and determination of indium by paper chromatography (695); separation of Pt, Pd, Re, and Ir by paper chromatography (1090); the separation of precious metal chloride complexes by TLC (1527); the paper chromatographic behavior of Ir (1489); the quantitative determination of individual precious metals after paper partition chromatography (1490); Pt, Pd, Rh, Ir, and Au have been separated by paper chromatography (1516) and reversed-phase partition chromatography on a column with tributyl phosphate adsorbed on Daiflon (polytrifluorcchloroethylene) (21); the microdetermination of Au, Ag, and Ru by Weisz ring technology after TLC (647); TLC of Au, Se, and Te in an alkaline medium (437).…”