Extraction of humic acids in two-phase aqueous polymeric systems

被引：3

作者：

Nifant'eva, TI

Shkinev, VM

Zavarzina, AG

Demin, VV

机构：

[1] VI Vernadskii Inst Geochem & Analyt Chem, Moscow 117975, Russia

[2] Moscow MV Lomonosov State Univ, Fac Soil Sci, Moscow 119899, Russia

来源：

JOURNAL OF ANALYTICAL CHEMISTRY | 2000年 / 55卷 / 10期

基金：

俄罗斯基础研究基金会;

关键词：

Humus; Humic Acid; Distribution Ratio; Polyethylene Glycol; Sodium Dextran Sulfate;

D O I：

10.1007/BF02756081

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Extraction of humic acids isolated from various soils was studied in polyethylene glycol(NH4)(2)SO4, polyethylene glycol-dextran, and polyethylene glycol-dextran sodium salt two-phase aqueous polymeric systems. It was shown that, in all systems, humic acids are extracted into the polyethylene glycol-rich phase. It was studied how the composition of the extraction system, molecular weight of the polymer, and the sample nature affect the distribution ratios of humic acids.

引用

页码：926 / 928

页数：3