Chemical structural characteristics of humic acids extracted from composted municipal refuse
نویسندگان
چکیده
منابع مشابه
Comparison of the Solid State CPMAS and Solution Carbon-13-NMR Spectra of Humic Acids Extracted from Composted Municipal Refuse
The solution and CPMAS spectra of humic acids extracted from the composted municipal refuse of three Spanish cities (Sevilla, Granada and Puerto Real) have been obtained at 75.4 MHz. The spectra are discussed qualitatively and the signals assigned to the various chemical struc tures forming the humic acids. It is attempted to learn the limits for the quantitative determination of signal areas ...
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Sammary-nree soil humic' aelds were degraded by a new mild chemical oxidatioo me!hod usiog potassium persulfate at pH 2.0. The melbod degraded 30-40"/0 of!he staning material. n. type and relative quantities of tbe products or fragments released as detennined by GC¡MS varíed with the source of lbe polymers. Humic aeld extracted from ao Inceptisol yielded fatty, benzenecarboxylic and pbenolic ae...
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گوشت قرمز یکی از مهم ترین فرآورده های دامی در تأمین پروتئین و انرژی می باشد که در حمل ویتامین های محلول در چربی نیز حائز اهمیت می باشد. انسان مانند سایر مهره داران اسید های چرب ضروری (لینولئیک و آلفا لینولنیک) مورد نیاز خود از طریق غذا تأمین می نماید. اسید های چرب ضروی پیش ساز اسید های چرب غیر اشباع با چند پیوند دوگانه هستند. اسید لینولنیک پیش ساز اسیدهای چرب امگا 3 و اسید لینولئیک نیز پیش ساز ...
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ژورنال
عنوان ژورنال: Agriculture, Ecosystems & Environment
سال: 1985
ISSN: 0167-8809
DOI: 10.1016/0167-8809(85)90041-6