Tri-n-octylamine as Liquid Anion Exchanger for Chromatographic Separation of Rare Earths on Paper or Cellulose Powder.

Journal Article · Thu Nov 01 04:00:00 EST 1962 · Analytical Chemistry

DOI:https://doi.org/10.1021/ac60192a014· OSTI ID:4750335

Testa, Corrado

The chromatographic behavior of rare earths on paper treated with tri-n- octylamine (TNOA) by elution with LiNO/sub 3/ solutions was investigated. Rare earths form anionic nitric complexes whose strength increases with decrease of atomic number. By plotting log (1/R/sub F/-- 1) vs the atomic number of the rare earths, a straight line was obtained, which indicates a mean separation factor of 1.45 for two adjacent elements. The influence on R values of the concentration of LiNO/sub 3/ eluting solution and of TNOA treating solution, and the HNO/sub 3/ added to LiNO/sub 3/, was also studied. Some examples of the separation of three or four rare earths are reported, and the possibility of separating milligram quantities of rare earths on beds of cellulose powder treated with TNOA is shown.

• Research Organization: Centro Informazioni Studi Esperienze, Milan
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-014155
• OSTI ID: 4750335
• Journal Information: Analytical Chemistry, Journal Name: Analytical Chemistry Journal Issue: 12 Vol. 34; ISSN 0003-2700
• Publisher: American Chemical Society (ACS)
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALKYL RADICALS
AMINES
CELLULOSE
CHEMISTRY
CHROMATOGRAPHY
COMPLEXES
ION EXCHANGE MATERIALS
LEACHING
LIQUIDS
LITHIUM NITRATES
NITRIC ACID
PAPER
POWDERS
RARE EARTHS
SEPARATION PROCESSES
SOLUTIONS