Structural features of lignohumic acids

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F15%3A00444680" target="_blank" >RIV/60077344:_____/15:00444680 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.molstruc.2015.03.054" target="_blank" >http://dx.doi.org/10.1016/j.molstruc.2015.03.054</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.molstruc.2015.03.054" target="_blank" >10.1016/j.molstruc.2015.03.054</a>

Result language

angličtina

Original language name

Structural features of lignohumic acids

Original language description

The composition and structure of humic acids isolated from lignohumate, which is produced by hydrolytic-oxidative conversion of technical lignosulfonates, were characterized by chemical and spectral methods (UV/VIS, FTIR, and C-13 NMR spectroscopy). As comparative samples, humic acids (HA) were isolated also from lignite and organic horizon of mountain spruce forest soil. When compared with other HA studied, the lignohumate humic acids (LHHA) contained relatively few carboxyl groups, whose role is partly fulfilled by sulfonic acid groups. Distinctive C-13 NMR signal of methoxyl group carbons, typical for lignin and related humic substances, was found at the shift of 55.9 ppm. Other alkoxy carbons, were present in limited quantity, like the aliphatic carbons. Due to the low content of these carbon types, the LHHA has high aromaticity of 60.6%. Comparison with the natural HA has shown that lignohumate obtained by thermal processing of technical lignosulfonate can be regarded as an indust

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DF - Pedology

OECD FORD branch

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Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Molecular Structure

ISSN

0022-2860

e-ISSN

—

Volume of the periodical

1093

Issue of the periodical within the volume

August

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

7

Pages from-to

179-185

UT code for WoS article

000355041400023

EID of the result in the Scopus database

2-s2.0-84927131927