搜索结果: 1-10 共查到“地质学 Acids”相关记录10条 . 查询时间(0.14 秒)
中国地质大学科学技术发展院王灿发,谢树成*等 BGEG国家重点实验室/地学院 Quaternary Science Reviews, 2018, Holocene temperature and hydrological changes reconstructed by bacterial 3-hydroxy fatty acids in a stalagmite from central China
长江中游‘’洞穴;石笋;细菌;羟基脂肪酸;重建;古温度;古水文变化
2021/10/21
近日,中国地质大学谢树成教授团队在国际著名期刊《Quaternary Science Reviews》发表题为“Holocene temperature and hydrological changes reconstructed by bacterial 3-hydroxy fatty acids in a stalagmite from central China”(长江中游洞穴石笋细菌3-羟...
Carbon isotopic compositions of fatty acids from the Japan Sea and their inferred terrestrial palaeoenvironment in Late Pleistocene
carbon isotopic compositions (δ13C) fatty acids
2017/4/12
Abundance and carbon isotopic composition (δ13C) of monocarboxylic fatty acids (n-FA) and n-alkanes in sediments
spanning the last 24 kyrs from the southeastern Oki Trough, Japan Sea (core KT96-17, P...
Evolution of Hematite Surface Microtopography Upon Dissolution by Simple Organic Acids
Atomic force microscope Clay mineral surfaces Dissolution Hematite Organic acids
2011/12/1
Abstract: The surface microtopography of hematite over the course of dissolution in oxalic and citric acids was examined by in-situ and ex-situ atomic-force microscopy, In-situ imaging of the basal-pl...
Intercalation of Salts of Fatty Acids Into Kaolinite
Fatty acid Fourier-transform infrared spectroscopy Intercalate Kaolinite Nuclear magnetic resonance Orientation X-ray powder diffraction
2011/11/30
Abstract: Intercalation of sodium and potassium salts of lauric, myristic, palmitic, elaidic, oleic, 12-hydroxystearic, and a blend of C8–C10 acids in kaolinite has been followed by X-ray powder diffr...
Optically Selective Adsorption of α-Amino Acids on Montmorillonite-Cu-l-Lysine Complexes in High-Pressure Liquid Chromatography
Adsorption Amino acid Cu-l-lysine High-pressure liquid chromatography Montmorillonite Optically active ligands
2012/1/11
Optically active cationic complexes adsorbed on montmorillonite can be used for the resolution of racemic mixtures. Montmorillonite-Cu-lysine systems were used as a solid phase in high-pressure liquid...
Influence of Citric and Tannic Acids on Hydroxy-Al Interlayering in Montmorillonite
Al polymers Hydroxy-Al interlayer Ion-exchange resin Montmorillonite Organic acid Specific surface
2011/11/25
Abstract: The formation of hydroxy-Al-interlayered montmorillonite was affected by complexing organic acids. Montmorillonite (<2.0 祄) was aged for three months at an initial pH of 5.0 or 6.0 in AlCl3 ...
Dissolution of Iron Oxides and Oxyhydroxides in Hydrochloric and Perchloric Acids
Acid Akaganeite Dissolution Goethite Hematite Iron oxide Lepidocrocite Maghemite Magnetite
2012/2/8
The dissolution of synthetic magnetite, maghemite, hematite, goethite, lepidocrocite, and akaganeite was faster in HCl than in HClO4. In the presence of H+, the Cl− ion increased the dissolution...
The Alteration of Some Aromatic Amino Acids and Polyhydric Phenols by Clay Minerals
Aromatic Amino Acids Alteration Polyhydric Phenols Clay Minerals
2012/2/15
These studies concern the catalytic activity of clays on amino acids, particularly tyrosine. Polyhydric phenols were included to help understand the tyrosine reactions.Below pH 3, tyrosine is adsorbed...
Zeolite as Catalysts for the Synthesis of Amino Acids and Purines
Zeolite Catalysts Synthesis Amino Acids Purines
2012/2/17
This paper attempts to show that the catalytic properties of zeolitic material may play a role in the synthesis of simple biological molecules from gases commonly found in extraterrestrial atmospheres...
Reactivity of Clay Minerals with Acids and Alkalies
Reactivity Clay Minerals Acids Alkalies
2012/2/20
One-g samples of a montmorillonite, a metabentonite, an illite, two kaolinites, and three halloysites were treated with 50 ml of hydrochloric acid (6·45 N, 1 : 1), acetic acid (4·5 N, 1 : 3), sodium h...