Ion Chromatographic Separation of Rare-Earth Elements Using a Nitrilotriacetate-Type Chelating Resin as the Stationary Phase

Autor:	Yoshinori Inoue, Toshishige M. Suzuki, Toshiro Yokoyama, Yoshiko Shimomura, Hiroki Kumagai
Rok vydání:	1996
Předmět:	Lanthanide Chelating resin chemistry.chemical_compound Chromatography chemistry Nitric acid Reagent Ion chromatography Derivatization Inductively coupled plasma mass spectrometry Capacity factor Analytical Chemistry
Zdroj:	Analytical Chemistry. 68:1517-1520
ISSN:	1520-6882 0003-2700
DOI:	10.1021/ac950783k
Popis:	The chromatographic retention behavior of rare-earth elements (REEs) on a chelating resin having a nitrilotriacetate group (NTA gel) was evaluated. The capacity factors for a series of REEs on the NTA gel were in fairly good agreement (R(2) = 0.978) with the stability constants of the corresponding NTA complexes. The NTA gel was applied to the column stationary phase for the ion chromatographic separation of REE. A favorable separation of a series of REEs was achieved within 15 min using a gradient elution of nitric acid. The separated REE ions were detected using the postcolumn derivatization method with chlorophosphonazo III as a colorization reagent. The present chromatographic system, interfaced with inductively coupled plasma mass spectrometry, was applied for the simultaneous determination of 14 REEs.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6197b9e6f2d5af01d4bae3cbab582095 https://doi.org/10.1021/ac950783k Zobrazit plný text záznamu