High-performance liquid chromatographic characterization of dissolved organic matter from low-level radioactive waste leachates

被引：16

作者：

Caron, F ^{[1
]}

Elchuk, S ^{[1
]}

Walker, ZH ^{[1
]}

机构：

[1] ATOM ENERGY CANADA LTD,CHALK RIVER LABS,GEN CHEM BRANCH,CHALK RIVER,ON K0J 1J0,CANADA

来源：

JOURNAL OF CHROMATOGRAPHY A | 1996年 / 739卷 / 1-2期

关键词：

radioactive waste; organic matter; dissolved; stationary phases; LC; environmental analysis; organic acids; metals; cobalt;

D O I：

10.1016/0021-9673(96)00077-5

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Leachates from a waste degradation experiment, containing similar to 700-3700 mg C/l of dissolved organic matter (DOM), were analyzed by high-performance liquid chromatography (HPLC) and liquid chromatography (LC), using various separation strategies. Scaling up of the separation scheme to a semi-preparative scale, suitable for hyphenated techniques, was also investigated. Separations with reversed-phase columns suggested that similar to 70-93% of the DOM was hydrophilic, and ion-pair chromatography of this fraction showed the presence of several discrete compounds. Labile and non-labile complexes were formed by adding Co-60 radiotracer. Size-exclusion chromatography indicated that the DOM was primarily in the <1000-1500 Da molecular mass range.

引用

页码：281 / 294

页数：14

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