e-ISSN 2231-8542
ISSN 1511-3701

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Chemical Forms of Cu, Zn, Ni and Co in Soil and Sediment of Ranau, Sabah

Marcus Jopony

Pertanika Journal of Tropical Agricultural Science, Volume 8, Issue 3, December 1985

Keywords: Chemical forms; sequential extraction; soil; sediment available

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This study was conducted to determine the distribution of the chemical forms of Cu, Zn, Ni and Co in the soil and sediment samples obtained from Lohan area in Ranau, Sabah. The samples were sequentially extracted with 0.5 M KNO3 to remove soluble plus exchangeable metals, with 0.5 M NaOH to remove organically bound metals, 0.05 M Na2 EDTA to dissolve metals in oxide or carbonate form, and with 4 M HNO3 at 80°C to dissolve metals in sulphide minerals. Most of the metals analysed were present as sulphide minerals with the exchangeable plus soluble fractions being very low.

ISSN 1511-3701

e-ISSN 2231-8542

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