REMOVAL OF W-185, MO-99 AND SB-125 RADIOISOTOPES FROM AQUEOUS-SOLUTIONS USING POLYAMINE INCORPORATED POLYSACCHARIDES

被引：10

作者：

GUPTA, SC ^{[1
]}

TAK, BB ^{[1
]}

MATHUR, NK ^{[1
]}

NARANG, CK ^{[1
]}

机构：

[1] UNIV JODHPUR,JODHPUR 342001,RAJASTHAN,INDIA

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES | 1993年 / 170卷 / 01期

关键词：

D O I：

10.1007/BF02134571

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Polyamino group-containing resins act both as chelating ion exchangers and weakly basic anion exchangers depending upon the species in contact in the solution. In the present work, ion exchangers based on polyamine incorporated polysaccharides (cellulose and galactomannan or guaran) have been used for removal of radioisotopes of W-185 as WO42-, Mo-99 as MoO42- and Sb-125 as Sb3+ from their separate aqueous solutions. These chelating anion exchangers have been synthesized by reaction of polysaccharides with epichlorohydrin followed by the respective polyamines as nucleophiles in a strongly alkaline medium. WO42- and MoO42- are adsorbed from their aqueous solutions through anion exchange process by chloride form of cellulose-triethylenetetraamine (cellulose-trien), cellulose-tetraethylenepentaamine (cellulose-tetren), guaran-triethylenetetraamine (guar-trien) and guar-tetraethylenepentaamine (guar-tetren) weakly basic anion exchangers. Guar-tetren chelating polymer has been found to be highly selective for Sb-125 isotopes presumably due to the presence of chelating cis-hydroxy and tetren groups in the galactomannan matrix.

引用

页码：3 / 8

页数：6

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