Structural-Group Composition and Biological Activity of Humic and Lipid Substances of Brown Coals
The samples of brown coal, bitumen and humic acids (HA) extracted from them are characterized by means of elemental and proximate analyses, FTIR, 13С NMR (CPMAS) spectroscopy and gas chromatography-mass spectrometry. The presence of biologically active substances is detected in the extracted bitume...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
al-Farabi Kazakh National University
2022-10-01
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| Series: | Eurasian Chemico-Technological Journal |
| Subjects: | |
| Online Access: | https://ect-journal.kz/index.php/ectj/article/view/1429 |