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In the Thick of Organic Matter
2008Between summer 1806 and spring 1808 the French chemist Louis Jacques Thenard (1777–1857) performed a series of experiments with ethers. At the time, ethers had already a history. The properties of pure ether, prepared from spirit of wine and sulfuric acid, were first described in an article by the German chemist August S.
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Fractionation of Soil Organic Matter
International Journal of Environmental Analytical Chemistry, 1999Abstract The International Humic Substances Society (I.H.S.S.) has published a general procedure for the fractionation and isolation of FA, but crucial information is lacking. Here we give an account of a modified procedure to fractionate and isolate FA from soil using XAD-8 resin.
Velthorst, E. +2 more
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Extraterrestrial Organic Matter: A review
Origins of life and evolution of the biosphere, 1998The published version is located at http://www.springerlink.com/content/k6484j30u8x323k2/
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The evolution of organic matter in space
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2011Carbon, and molecules made from it, have already been observed in the early Universe. During cosmic time, many galaxies undergo intense periods of star formation, during which heavy elements like carbon, oxygen, nitrogen, silicon and iron are produced. Also, many complex molecules, from carbon monoxide to polycyclic aromatic hydrocarbons, are detected ...
Pascale, Ehrenfreund +2 more
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1970
Ideas about the structure of matter have always been investigated by both the physicist and the chemist, the former speculating about the fine structure of matter, the building up of its structure to make what we see, the latter about the behavior of matter in chemical operations.
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Ideas about the structure of matter have always been investigated by both the physicist and the chemist, the former speculating about the fine structure of matter, the building up of its structure to make what we see, the latter about the behavior of matter in chemical operations.
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Organic Matter in Carbonaceous Chondrites
1986Carbonaceous chondrites are objects of great interest for chemists and astrophysicists. They contain a large number of abiogenic organic molecules and they are fragments of the least metamorphized bodies which exist in the solar system. Therefore, the study of carbonaceous chondrites affords information about the state of matter 4.5 Gyr ago.
Françoise Mullie, Jacques Reisse
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Analysis on the flocculation characteristics of algal organic matters
Journal of Environmental Management, 2022Haibing Cong
exaly
[Effect of extracelluar organic matter and natural organic matter on coagulation].
Huan jing ke xue= Huanjing kexue, 2011Influence of EOM and NOM on removal of algae and turbidity was investigated. The result showed that EOM had both beneficial and harmful effects on coagulation, it hindered the charge neutrality of the flocculant. Zeta potential of algae decreased from -40.6 mV to -14.7 mV, only when the modified chitosan was added above 0.2 mg x L(-1).
Guo-jian, Shi +5 more
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