Fractionation of sediment phosphate with chelating compounds: A simplification, and comparison with other methods

被引：192

作者：

Golterman, HL ^{[1
]}

机构：

[1] STN BIOL TOUR VALAT, ASSOC LEIDEN CAMARGUE, F-13200 ARLES, FRANCE

来源：

HYDROBIOLOGIA | 1996年 / 335卷 / 01期

关键词：

phosphate extraction; phosphate fractionation; sediments; EDTA;

D O I：

10.1007/BF00013687

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

The NTA/EDTA fractionation of sediment-bound, inorganic phosphate was improved and made more effective. The iron-bound phosphate is now extracted with Ca-EDTA plus dithionite and followed by an extraction of calcium-bound phosphate by Na-2-EDTA at pH = 4.5. A comparison is made with two other sequential extraction procedures: the SEDEX and the Hieltjes & Lijklema extractions. The EDTA extractions have an advantage over the other two methods.

引用

页码：87 / 95

页数：9

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