Heavy metal analysis of different type of agriculture soil by aas atomic absorption spectrometry
Heavy metals are natural constituents of the Earth's crust. They are stable and cannot be degraded or destroyed, therefore they tend to accumulate in soils. Thus heavy metal composition in soil can serve as fingerprint of the land as soil can be used to locate crime scene. This study investi...
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| Format: | Monograph |
| Language: | English |
| Published: |
Universiti Sains Malaysia
2017
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| Online Access: | http://eprints.usm.my/62139/ http://eprints.usm.my/62139/1/NOR%20FARAH%20EMYLIANA%20BINTI%20MOHD%20RUSLI%20-%20e.pdf |
| Summary: | Heavy metals are natural constituents of the Earth's crust. They are stable and cannot be
degraded or destroyed, therefore they tend to accumulate in soils. Thus heavy metal
composition in soil can serve as fingerprint of the land as soil can be used to locate
crime scene. This study investigate the concentration heavy metal of Cu, Cd, Cr, Pb and
Zn in surface soil sample from different types of agriculture soil by using Atomic
Absorption Spectrometer (AAS). The concentration of Cu, Cd, Cr, Pb and Zn in the
surface soil sample from different types of agriculture soil of palm oil, sugarcane,
rubber, lime and banana were determined. Before analyzed by AAS, sample pretreatment
method was employed. Overall concentration (mg/kg) of Cu, Cd, Cr, Pb and
Zn in the soil samples from palm oil was found to be Cu (2.887), Cd( 3.468), Cr
(2.273), Pb (ND) and Zn(12.194), Sugarcane: Cu ( 4.278), Cd (2.918), Cr ( 7.711), Pb
(ND) and Zn ( 23.216), Rubber: Cu( 14.735), Cd (4.243), Cr ( 9.033), Pb ( 7.890) and
Zn (25.525),Lime: Cu (27.377), Cd ( 3.702), Cr (14.212), Pb ( 27.112) and Zn( 32.222),
Banana: Cu (68.162), Cd (4.530), Cr (17.173), Pb (63.798) and Zn (40.088). The
differences concentration of heavy metal in soil can be used in forensic analysis of soil
to differentiate the type of agriculture soil and this data can help in investigation that
involved soil analysis. The concentrations of Cu, Cd, Cr, Pb and Zn in all different types
of agriculture soil were below the USEPA standard of heavy metal in soil. The accuracy
of the optimized acid digestion procedure was evaluated by recovery studies. The
recoveries of the metals were in the range of 64.00%-91.54%. |
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