Humic acids from oxidized coals:Capillary zone electrophoresis and mass-spectrometry study

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F04%3A00010198" target="_blank" >RIV/61989100:27360/04:00010198 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Humic acids from oxidized coals:Capillary zone electrophoresis and mass-spectrometry study

Original language description

Humic acids from open-air and laboratory oxidized bituminous coals (under various temperatures) were prepared and characterized. For the comparison, lignite and oxidized lignite (oxihumolite) were examined as well. All samples were analyzed by capillaryzone electrohoresis (CZE) and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF). For the CZE separation of humic acids (HAs), the borate-Tris-EDTA (pH=8.3) and borate-b-cyclodextrine (pH=9.6) electrolytes were used.The samples of humic acids were prepared by their dissolution in sodium hydroxide solutions. All CZE electropherograms are typical by a huge non-resolved peak (hump) which contains a lot of migrating humic acids. The ageing effect of HAs, brought abouttheir self-assembling processes, was observed as a prolongation of hump migration times in both electrolyte systems. However, after 30 days a very good reproducibility of electropherograms was obtained. In the borate-Tris-EDTA electrolyte

Czech name

Huminové kyseliny z oxidovaných uhlí:Studium pomocí kapilární zónová elektroforézy a hmotnostní spektrometrie.

Czech description

Huminové kyseliny z oxidovaných uhlí:Studium pomocí kapilární zónová elektroforézy a hmotnostní spektrometrie.

Type

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

CEP classification

DD - Geochemistry

OECD FORD branch

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Project

<a href="/en/project/GA105%2F02%2F0163" target="_blank" >GA105/02/0163: The study of higher ash lignite composition on affinity and volatility of toxic elements and substances for energetic utilization</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2004

Confidentiality

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

Name of the periodical

Acta Geodynamica et Geomateriala

ISSN

1211-1910

e-ISSN

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Volume of the periodical

136

Issue of the periodical within the volume

4

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

10

Pages from-to

7-16

UT code for WoS article

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EID of the result in the Scopus database

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