Humic substances of peat: Study of the parameters that influence on the process of alkaline E extraction

被引：38
|
作者：
Rosa, AH [1 ]
Rocha, JC [1 ]
Furlan, M [1 ]
机构：
[1] UNESP, Inst Quim Araraquara, BR-14800900 Araraquara, SP, Brazil
来源：
QUIMICA NOVA | 2000年 / 23卷 / 04期
关键词：
humic substances; humic acid; fulvic acid; peat; extraction;
D O I：
10.1590/S0100-40422000000400008
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
This study reports the parameters which influence on extraction of humic substances (HS) from peat, The yield, organic and inorganic contend, E-4/E-6 ratio and elemental composition (C,H,N) of the extracted HS have been determined. The functional groups were identified by Fourier-transform infrared espectroscopy, The results showed influence of the extractor type, concentration, time, temperature and granular texture of the sample in the extraction. This work contributes to better understanding of the extraction process showing the necessity of the standard method to extract humic substances from soil.
引用
收藏
页码：472 / 476
页数：5
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