Criterious Preparation and Characterization of Earthworm-composts in View of Animal Waste Recycling: Part II. A Synergistic Utilization of EPR and 1H NMR Spectroscopies on the Characterization of Humic Acids from Vermicomposts
Humic acids (HA) extracted from sheep (SHHA), cow (COHA), goat (GOHA) and rabbit (RAHA) vermicomposted manure were analyzed by electron paramagnetic resonance and hydrogen nuclear magnetic resonance spectroscopies. Carboxylic acids, amine, amide, ester, ether and phenol functions bonded to saturated...
Main Authors: | , , , , |
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Format: | Article |
Language: | English |
Published: |
Sociedade Brasileira de Química
2001-01-01
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Series: | Journal of the Brazilian Chemical Society |
Subjects: | |
Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532001000600008 |