Spectroscopic Characterization of Natural Humic Substances

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F13%3A00199739" target="_blank" >RIV/62156489:43210/13:00199739 - isvavai.cz</a>

Výsledek na webu

<a href="http://link.springer.com/article/10.1007%2Fs10812-013-9713-8" target="_blank" >http://link.springer.com/article/10.1007%2Fs10812-013-9713-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10812-013-9713-8" target="_blank" >10.1007/s10812-013-9713-8</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Spectroscopic Characterization of Natural Humic Substances

Popis výsledku v původním jazyce

Chemical composition and structure of humic substances were established based on spectroscopic studies (EDXS, SRATR FTIR, and 13C NMR). Humic acids were isolated from different matrices such as soils, compost, lignite, and commercial lignohumate. Obtained results showed the highest content of aromatic groups in lignite and humic acids of Chernozem. The aromaticity degree calculated from 13C NMR spectroscopy data decreased in the following order: lignite > Chernozems > lignohumate > Luvisols > compost >Cambisols. Infrared spectroscopy detected bands indicative of aliphatic groups (C--H at 2925 cm--1); aromatic groups (C=C at 1620 cm--1); phenolic groups (at 1404--1419 cm--1); and carboxyl and carbonyl groups (at 1225--1223 cm--1) in all studied humic acid samples. Main differences were found in the fingerprint region of 1700--1000 cm--1. Reactivity of humic acids given by the O/R ratio showed that the highest amount of n-alkyl groups were in the lignohumate samples. EDX spectroscopy in

Název v anglickém jazyce

Spectroscopic Characterization of Natural Humic Substances

Popis výsledku anglicky

Chemical composition and structure of humic substances were established based on spectroscopic studies (EDXS, SRATR FTIR, and 13C NMR). Humic acids were isolated from different matrices such as soils, compost, lignite, and commercial lignohumate. Obtained results showed the highest content of aromatic groups in lignite and humic acids of Chernozem. The aromaticity degree calculated from 13C NMR spectroscopy data decreased in the following order: lignite > Chernozems > lignohumate > Luvisols > compost >Cambisols. Infrared spectroscopy detected bands indicative of aliphatic groups (C--H at 2925 cm--1); aromatic groups (C=C at 1620 cm--1); phenolic groups (at 1404--1419 cm--1); and carboxyl and carbonyl groups (at 1225--1223 cm--1) in all studied humic acid samples. Main differences were found in the fingerprint region of 1700--1000 cm--1. Reactivity of humic acids given by the O/R ratio showed that the highest amount of n-alkyl groups were in the lignohumate samples. EDX spectroscopy in

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CB - Analytická chemie, separace

OECD FORD obor

—

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Journal of Applied Spectroscopy

ISSN

0021-9037

e-ISSN

—

Svazek periodika

80

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

8-14

Kód UT WoS článku

317982800002

EID výsledku v databázi Scopus

—