Method of isolating humic acid.
The present invention is a simple, rapid and cost-effective ,method of isolating humic acids from organic and inorganic materials. The method comprises the steps of: (a) dissolving a humic acid containing substance in an alkaline solution; (b) subjecting the mixture of humic acid containing substanc...
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2009
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my.upm.eprints.265862014-09-22T08:34:40Z http://psasir.upm.edu.my/id/eprint/26586/ Method of isolating humic acid. Ahmed, Osumanu Haruna Kasim, Susilawati Nik Ab. Majid, Nik Muhamad The present invention is a simple, rapid and cost-effective ,method of isolating humic acids from organic and inorganic materials. The method comprises the steps of: (a) dissolving a humic acid containing substance in an alkaline solution; (b) subjecting the mixture of humic acid containing substance and alkaline solution to centrifugation to obtain a supernatant layer as a precipitate layer; (c) reacting the precipitate layer with an acidic solution to obtain a suspension layer containing humic acid; (d) subjecting the suspension layer containing humic acid to centrifugation to obtain a precipitate; (e) washing the precipitate with distilled water, thus obtaining a purified humic acid extract. 2009-01-07 Patent NonPeerReviewed Osumanu Haruna Ahmed (2009) Method of isolating humic acid. UNSPECIFIED. English |
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The present invention is a simple, rapid and cost-effective ,method of isolating humic acids from organic and inorganic materials. The method comprises the steps of: (a) dissolving a humic acid containing substance in an alkaline solution; (b) subjecting the mixture of humic acid containing substance and alkaline solution to centrifugation to obtain a supernatant layer as a precipitate layer; (c) reacting the precipitate layer with an acidic solution to obtain a suspension layer containing humic acid; (d) subjecting the suspension layer containing humic acid to centrifugation to obtain a precipitate; (e) washing the precipitate with distilled water, thus obtaining a purified humic acid extract.
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format |
Patent |
author |
Ahmed, Osumanu Haruna Kasim, Susilawati Nik Ab. Majid, Nik Muhamad |
spellingShingle |
Ahmed, Osumanu Haruna Kasim, Susilawati Nik Ab. Majid, Nik Muhamad Method of isolating humic acid. |
author_facet |
Ahmed, Osumanu Haruna Kasim, Susilawati Nik Ab. Majid, Nik Muhamad |
author_sort |
Ahmed, Osumanu Haruna |
title |
Method of isolating humic acid. |
title_short |
Method of isolating humic acid. |
title_full |
Method of isolating humic acid. |
title_fullStr |
Method of isolating humic acid. |
title_full_unstemmed |
Method of isolating humic acid. |
title_sort |
method of isolating humic acid. |
publishDate |
2009 |
url |
http://psasir.upm.edu.my/id/eprint/26586/ |
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1643828957234069504 |
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13.160551 |