Characterization of reference and site specific humic acids
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Characterization of reference and site specific humic acids interlaboratory comparison exercise of the "COCO-club" in theCEC project MIRAGE II, part 1: Characterization by J. I. Kim

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Published by Institut fu r Radiochemie der Technischen Universita t Mu nchen in [Munich] .
Written in English


Book details:

Edition Notes

StatementJ.I. Kim, G. Buckau.
ContributionsBuckau, G., Technische Universita t Mu nchen. Institut fu r Radiochemie.
The Physical Object
Pagination1 microfiche
ID Numbers
Open LibraryOL13941731M

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Humic substances are organic compounds that are important components of humus, the major organic fraction of soil, peat, and coal (and also a constituent of many upland streams, dystrophic lakes, and ocean water).For a long era in the 19th and 20th centuries, humic substances were often viewed through a lens of acid–base theory that described humic acids, as organic acids, . The acidified humic acid was filtered and collected. The collected humic acid was dried The humic acid was purified several times by redissolving in KOH,centrifuging, acidifying, filtering, drying, and saving in this vial. Asingle extraction gave g pure humic acid from g of sugarcane mulch, which was % of the senescent plant matter. Kim JI, Buckau G () Characterization of Reference and Site Specific Humic Acids. RCM-Report , TU München Google Scholar Mack B () Redoxeigenschaften von Lignin und Huminsäuren und deren Wechselwirkung mit by: 6. Summary. The field of humic matter research has undergone drastic changes in concepts and principles since the first edition of Humic Matter in Soil and the Environment: Principles and Controversies was published more than a decade ago. Still the only book of its kind specifically addressing humic acid principles and controversies, the Second Edition presents the newest .

variations noted in molecular weights of humic acids. As indicated above, the latter are used by a group of scientists for challenging the applicability of the polymer concept in humic acid chemistry. THE ISSUE OF MOLECULAR WEIGHT Molecular weights of humic substances are noted to vary widely from a few thousand to 1,, or Size: 91KB. K.A. Natarajan, in Biotechnology of Metals, Direct Gold Dissolution by Microbes. Organic acids such as humic and fulvic acids, amino acids and carboxylic acids promote gold acids produced by microorganisms such as B. subtilis, Bacillus alvei, B. megaterium, B. mesentericus, Serratia marcescens, P. fluorescens, and Pseudomonas . Water chemists use pH 2 as their reference. Effectively all of the precipitable components are precipitated at this pH. Some proteins, for example, are among the non-humic materials that precipitate under similar conditions. Fulvic acids, in the classical definitions, remain in solution after the medium is acidified.   Humic acids (HA) are the natural macromolecules with various functional groups. In this paper, HA were explored as the water-soluble binder of silicon-based anode for lithium-ion batteries (LIBs). The results showed that addition of HA can restrain the fading capacity of Si-based anode compared with that with the polyvinylidene fluoride (PVDF Author: Shuzhen Yang, Guihong Han, Yanfang Huang, Jiongtian Liu.

Humic (humic and fulvic acids) and carbohydrate constituents (uronic acids, sugars released by mild hydrolysis, and total sugars) of soil polysaccharides were linearly related to SOC. The proportion of humic acid extracted with sodium pyrophosphate/sodium hydroxide solution increased with increasing SOC, whereas that of fulvic acid decreased. Humic substances have long been extracted from soils, waters, and organic materials. Their chemical composition has well represented that of natural organic matter. Compost maturation and composition are well represented by their properties. Soil humic studies elucidated metal and organic xenobiotic binding and nutrient cycling. @article{osti_, title = {Detection and characterization of uranium-humic complexes during 1D transport studies}, author = {Lesher, Emily K. and Honeyman, Bruce D. and Ranville, James F.}, abstractNote = {The speciation and transport of uranium (VI) through porous media is highly dependent on solution conditions, the presence of complexing ligands, and the nature of the . Contextual translation of "humic" into English. Human translations with examples: humic alisols, humic acrisols, humic nitisols, humic cambisols.