高等学校化学学报

高等学校化学学报 ›› 1994, Vol. 15 ›› Issue (8): 1128.

• 论文 • 上一篇    下一篇

P350微孔快速色谱柱分离富集铀的性能研究

龚治湘, 宋金如   

  1. 华东地质学院应用化学系, 抚州, 344000
  • 收稿日期:1993-09-28 修回日期:1994-04-26 出版日期:1994-08-24 发布日期:1994-08-24
  • 通讯作者: 龚治湘,男,55岁,教授.
  • 作者简介:龚治湘,男,55岁,教授.
  • 基金资助:

    核工业总公司地质局科研课题

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

GONG Zhi-Xiang, SONG Jin-Ru   

  1. 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

PDF (PC)

摘要： 以铀为例研究了P350萃淋树脂微孔色谱柱的性能。结果表明,柱径和树脂粒度是影响柱效的主要因素,当柱径为2～3mm,树脂粒度为120～140目时,上柱流速可为1～8mL/min,洗脱体积仅为1mL.理论塔板高度比内径为7mm的常现柱下降2个数量级以上,并可节省大量试剂。提出抽空洗脱方式,解决了空床体积影响柱效的难题。

关键词: 甲基膦酸二甲庚酯, 减压微色谱柱, 抽空洗脱, 铀

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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