Substâncias húmicas de turfa: estudo dos parâmetros que influenciam no processo de extração alcalina

Química Nova

André Henrique Rosa¹  Julio Cesar Rocha¹  Maysa Furlan¹ 

[1] ,UNESP Instituto de Química de Araraquara Araraquara SP

关键词: humic substances;    humic acid;    fulvic acid;    peat;    extraction;   

DOI  :  10.1590/S0100-40422000000400008

来源: SciELO

【 摘 要 】

This study reports the parameters which influence on extraction of humic substances (HS) from peat. The yield, organic and inorganic contend, E4/E6 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

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License