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Fresenius' Journal of Analytical Chemistry|October 5, 2001
Group separation of trace rare-earth elements by countercurrent chromatography for their determination in high-purity calcium chlorideS N Ignatova, T A Maryutina, Spivakov BYa, et al.Journal of Chromatography. A|July 14, 2004
Countercurrent chromatographic separation: a hydrodynamic approach developed for extraction columnsA E Kostanian, A Berthod, S N Ignatova, et al.Pageof 1