Research Progress in Analytical Methods of Biomarker GDGTs in Geological Environments
Glycerol dialkyl glyceryl tetraethers (GDGTs) are a class of environment biomarkers that are widely found in the environment of oceans, lakes, soils, and peat. GDGTs usually exist as intact polar lipids (IPL-GDGTs) in living cells, while they exist as core lipids stripped of polar head groups (CL-GD...
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Science Press, PR China
2024-02-01
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| Series: | Yankuang ceshi |
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| Online Access: | http://www.ykcs.ac.cn/article/doi/10.15898/j.ykcs.202306100077 |
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| author | Nan ZHAN Qing SUN Qi LI Manman XIE Wenyu SHANG Ruixia HAO |
| author_facet | Nan ZHAN Qing SUN Qi LI Manman XIE Wenyu SHANG Ruixia HAO |
| author_sort | Nan ZHAN |
| collection | DOAJ |
| description | Glycerol dialkyl glyceryl tetraethers (GDGTs) are a class of environment biomarkers that are widely found in the environment of oceans, lakes, soils, and peat. GDGTs usually exist as intact polar lipids (IPL-GDGTs) in living cells, while they exist as core lipids stripped of polar head groups (CL-GDGTs) in geological environments. CL-GDGTs are structurally stable and sensitive to environmental changes and are considered to be a powerful tool for reconstructing palaeoclimate-palaeoenvironmental changes. GDGTs are structurally complex and diverse, coexisting with other compounds and present low contents, which brings challenges in analysis, especially in separation, purification, and quantification. This article summarizes the classification and structure of GDGTs, and presents a summary and comparison of methods for the separation and purification of IPL-GDGTs and CL-GDGTs in the environment. Multiple extraction methods can be used for CL-GDGTs, while the polar and thermally unstable IPL-GDGTs are preferably extracted using the Bligh-Dyer method. This article reviews the characteristics and limitations of various analysis methods, including liquid chromatography-mass spectrometry, nuclear magnetic resonance spectroscopy, and gas chromatography-isotope ratio mass spectrometry. The BRIEF REPORT is available for this paper at http://www.ykcs.ac.cn/en/article/doi/10.15898/j.ykcs.202306100077. |
| format | Article |
| id | doaj-art-8dae78ddafba46ad97ef9531be5ccb30 |
| institution | DOAJ |
| issn | 0254-5357 |
| language | English |
| publishDate | 2024-02-01 |
| publisher | Science Press, PR China |
| record_format | Article |
| series | Yankuang ceshi |
| spelling | doaj-art-8dae78ddafba46ad97ef9531be5ccb302025-08-20T03:11:24ZengScience Press, PR ChinaYankuang ceshi0254-53572024-02-01431304610.15898/j.ykcs.202306100077yk202306100077Research Progress in Analytical Methods of Biomarker GDGTs in Geological EnvironmentsNan ZHAN0Qing SUN1Qi LI2Manman XIE3Wenyu SHANG4Ruixia HAO5National Research Center for Geoanalysis, Key Laboratory of Eco-Geochemistry, Ministry of Natural Resources, Beijing 100037, ChinaNational Research Center for Geoanalysis, Key Laboratory of Eco-Geochemistry, Ministry of Natural Resources, Beijing 100037, ChinaInstitute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, ChinaNational Research Center for Geoanalysis, Key Laboratory of Eco-Geochemistry, Ministry of Natural Resources, Beijing 100037, ChinaNational Research Center for Geoanalysis, Key Laboratory of Eco-Geochemistry, Ministry of Natural Resources, Beijing 100037, ChinaSchool of Earth and Space Sciences, Peking University, Beijing 100871, ChinaGlycerol dialkyl glyceryl tetraethers (GDGTs) are a class of environment biomarkers that are widely found in the environment of oceans, lakes, soils, and peat. GDGTs usually exist as intact polar lipids (IPL-GDGTs) in living cells, while they exist as core lipids stripped of polar head groups (CL-GDGTs) in geological environments. CL-GDGTs are structurally stable and sensitive to environmental changes and are considered to be a powerful tool for reconstructing palaeoclimate-palaeoenvironmental changes. GDGTs are structurally complex and diverse, coexisting with other compounds and present low contents, which brings challenges in analysis, especially in separation, purification, and quantification. This article summarizes the classification and structure of GDGTs, and presents a summary and comparison of methods for the separation and purification of IPL-GDGTs and CL-GDGTs in the environment. Multiple extraction methods can be used for CL-GDGTs, while the polar and thermally unstable IPL-GDGTs are preferably extracted using the Bligh-Dyer method. This article reviews the characteristics and limitations of various analysis methods, including liquid chromatography-mass spectrometry, nuclear magnetic resonance spectroscopy, and gas chromatography-isotope ratio mass spectrometry. The BRIEF REPORT is available for this paper at http://www.ykcs.ac.cn/en/article/doi/10.15898/j.ykcs.202306100077.http://www.ykcs.ac.cn/article/doi/10.15898/j.ykcs.202306100077glycerol dialkyl glycerol tetraethers (gdgts)extractionseparation and purificationcontent analysisstructural identificationisotopic analysis |
| spellingShingle | Nan ZHAN Qing SUN Qi LI Manman XIE Wenyu SHANG Ruixia HAO Research Progress in Analytical Methods of Biomarker GDGTs in Geological Environments Yankuang ceshi glycerol dialkyl glycerol tetraethers (gdgts) extraction separation and purification content analysis structural identification isotopic analysis |
| title | Research Progress in Analytical Methods of Biomarker GDGTs in Geological Environments |
| title_full | Research Progress in Analytical Methods of Biomarker GDGTs in Geological Environments |
| title_fullStr | Research Progress in Analytical Methods of Biomarker GDGTs in Geological Environments |
| title_full_unstemmed | Research Progress in Analytical Methods of Biomarker GDGTs in Geological Environments |
| title_short | Research Progress in Analytical Methods of Biomarker GDGTs in Geological Environments |
| title_sort | research progress in analytical methods of biomarker gdgts in geological environments |
| topic | glycerol dialkyl glycerol tetraethers (gdgts) extraction separation and purification content analysis structural identification isotopic analysis |
| url | http://www.ykcs.ac.cn/article/doi/10.15898/j.ykcs.202306100077 |
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