ISOLASI DAN KARAKTERISASI ASAM HUMAT DARI TANAH GAMBUT
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Abstract
Telah dilakukan penelitian tentang isolasi dan kara- kterisasi asam humat hasil isolasi tanah gambut yang be- rasal dari Desa Sambutan, Kecamatan Samarinda Ilir, Sa- marinda, Kalimantan Timur.
Isolasi asam humat dari tanah gambut menggunakan metode ekstraksi alkali, pemurnian dan penentuan kand- ungan gugus fungsional asam humat secara titrasi poten- siometri.
Hasil penelitian menunjukkan gugus fungsional utama asam humat hasil isolasi tanah gambut adalah gu- gus –COOH dan gugus –OH. Secara kuantitatif kandungan gugus fungsional tersebut masing-masing sebesar 426,2 cmol/kg (gugus –COOH), 289,6 cmol/kg (gugus –OH fenolat) dan 37,0 cmol/kg (gugus –OH alkoholat).
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References
Aiken, G.R., McKnight, D.M.,Wershaw, R.L. dan P. MacCarthy, P., 1985, “Humic Substance in Soil, Sediment and Water” : Geochemistry, Isolation, and Characterization, John Wiley
& Sons, New York.
Gaffney, J.S., Marley, N.A., Clarck, S.B., 1996, Humic and Fulvic Acids : Isolation, Structure and Environmental Role, Amer- ican Chemical Society, Washington, DC.
Gosh, K., dan Schnitzer, M., 1980, “Macromolecular Structures of
Humic Substances”, Soil Science, 129
Hayes, M.B., dan Himes, F.L., 1986, “Nature and Properties of Humus-Mineral Complexes”, In : “Interaction of Soil Mineral with Natural Organics and Microbes” (P.M. Huang dan M.Schnitzer), Soil Sci. Soc. Am. Special Publ.,
, Soil Sci. Am., Madison, WI : 103-158.
Ishiwatari, R., 1985, “Geochemistry of Humic Subtances in Lake Sediments” (dalam Aiken, dkk, 1985, Humic Subtances in Soils, Sediment and Water : Geochemistry, Isolation, and Characterization, John Wiley & Sons, New York.
Manahan, S.E., 2000, ”Environmental Chemistry”, Seventh Edi- tion, Willard Grant Press, Boston.
Sanchez-Cortez, S., Francioso, O., Garcia-Ramos, J.V., Marzadori, C., and Gessa, C.C.C., 2000, “Formation of Humic-like
substances from Phenols by means SERS Spectroscopy, p.121, In : Proceedings 10th International Meeting of the In- ternational-Humic Substances Society, IHSS 10, 24-28 July
-Touluse (France).
Schnitzer, M., 1986, “ Pengikatan Bahan Humat oleh Koloid Mineral Tanah”, (dalam Huang, P.M, dan Schnitzer, M., 1986, “Interaksi Mineral Tanah dengan Organik Alami dan Mik- roba”, Terjemahan : Goenadi, D.H., 1997), Gadjah Mada University Press, Yogyakarta.
Stevenson, F.J., 1994, “Humus Chemistry : Genesis, Composition, Reactions”, John Wiley & Sons Inc., New York.
Tan, K.H., 1998, “Dasar-dasar Kimia Tanah”, Gadjah Mada Uni- versity Press, Yogyakarta.
Tarchitzky, J., Y.Chen., dan A.Banin, 1993, “Humic Subtances and pH Effects on Sodium-and Calcium-Montmoril- lonite Flocculation and Dispersion”, Soil Science Soc. Am. J, 57 : 367-372.