Characterization by Electron Paramagnetic Resonance of organic matter in whole soil (Gleysoil) and organic-mineral fractions

Journal of the Brazilian Chemical Society

Embrapa Instrumentação Agropecuária, São Carlos, Brazil¹  Martin-Neto, Ladislau¹  Saab, Sérgio Costa¹  Universidade Estadual de Ponta Grossa, Ponta Grossa, Brazil¹ 

关键词: free radical;    humification;    organic-mineral fractions;    whole soil;   

DOI  :  10.1590/S0103-50532008000300007

学科分类：化学（综合）

来源: SciELO

【 摘 要 】

Electron Paramagnetic Resonance (EPR) spectroscopy was applied in whole soil samples (Gleysoil). The objective of this work was to quantify the degree of humification of the organic matter of the soil, whole soil (Gleysoils) without any chemical treatment, and to compare with its organic-mineral fractions. The signal of semiquinone free radical was detected and quantified showing close relationship with its organic-mineral fractions.

【 授权许可】

Unknown