A Water Soluble Polymer as a Working Structural Model for Humic Acids:H-binding and Spectroscopic Properties

摘要

HA occur ubiquitously in terrestrial and aquatic environments,indicating that many precursors and several formation pathways exist.Distinguishing among these pathways has been difficult because individual scientists have tended to concentrate their efforts on specific types of samples(e.g.soil,sediment or water)for which different isolation or fractionation methods are often used(1).Humic acids ultimately result from abiotic and biotic polymerisation and polycondensation reactions involving such small precursors(1).