Studies on Properties of Tiny Decompressed Column Chromatography in Separation and Enrichment of Trace Uranium

Chem. J. Chinese Universities ›› 1994, Vol. 15 ›› Issue (8): 1128.

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Studies on Properties of Tiny Decompressed Column Chromatography in Separation and Enrichment of Trace Uranium

GONG Zhi-Xiang, SONG Jin-Ru

Department of Applied Chemistry, East China Geological College, Fuzhou, 344000

Received:1993-09-28 Revised:1994-04-26 Online:1994-08-24 Published:1994-08-24

Abstract

Abstract: Popular column chromatography suffers some disadvantages such as easy-leaking, great elution volumn and time-consuming.The properties of a tiny decompressed column with P₃₅₀ levextrel resin in separation and enrichment of uranium are investigated for the first time.The column void volumn is minimized by pumpdown before each elution in order to reach high column performance.The results show that the height equivalent to a theoretical plate(HETP)of the tiny decompressed column(3mm)is reduced 149 times in comparison with popular one, and the elution volume is only 1 mL.

Key words: Dimethylheptyl methylphosphonate(P₃₅₀), Tiny decompressed column chromatography, Pumpdown elution, Uranium

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GONG Zhi-Xiang, SONG Jin-Ru. Studies on Properties of Tiny Decompressed Column Chromatography in Separation and Enrichment of Trace Uranium[J]. Chem. J. Chinese Universities, 1994, 15(8): 1128.

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Studies on Properties of Tiny Decompressed Column Chromatography in Separation and Enrichment of Trace Uranium

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