Determination of aluminium in acid mine drainage and river water in Ranau, Sabah

Kasturi Manoharan, (2008) Determination of aluminium in acid mine drainage and river water in Ranau, Sabah. Universiti Malaysia Sabah. (Unpublished)

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Colorimetric analysis of Al in water according to the Eriochrome Cyanine R method has been studied. Absorbance measurement was carried out using a UV -VIS spectrophotometer. The absorbance reading can be obtained at λ.max = 535nm after a reaction time of 5 minutes. The relationship between absorbance and concentration obeyed the Beer-Lambert law at concentration range 0-1.0 µg/mL but showed a negative deviation at concentrations above 1.0 µg/mL. The presence of phosphate and ferric ions in solution produced a negative and positive interference, respectively, on the absorbance measurement. Analysis of river water and AMD samples showed Al concentrations in the range 0.3853 - 0.8241 µg/mL (average: 0.55 ± 0.01 µg/mL) and 117.74 - 181.95 µg/mL (average: 138.l6± 1.56 µg/mL), respectively.

Item Type: Academic Exercise
Uncontrolled Keywords: absorbance, Colorimetric analysis, Eriochrome Cyanine R method, Al concentrations
Subjects: Q Science > QD Chemistry
Divisions: FACULTY > Faculty of Science and Natural Resources
Depositing User: Munira
Date Deposited: 27 Mar 2018 07:24
Last Modified: 27 Mar 2018 07:24

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