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DETERMINATION OF HEAVY METALS CONCENTRATION IN COMMERCIAL<br />

FISH<br />

Nur As Asyikin Binti Hasi<br />

Nur Syafinaz Binti Ismady<br />

Supervisor: Dr.Poh Seng Chee<br />

Bachelor of Science (Analytical and Environmental Chemistry)<br />

School of Marine Science and Environmental<br />

University Malaysia Terengganu<br />

Orechemis sp (tilapia) and Lates calcarifer (siakap) fish is the most popular commercial<br />

fish in Terengganu. So, it had been use to determine the heavy metals level in this<br />

species. Concentration of the heavy metals in copper (Cu), cadmium (Cd), zinc (Zn),<br />

lead (Pb) and iron (Fe) were determined in the liver, gills and muscle of siakap and<br />

tilapia fish from the Pulau Duyong river. Total Cu, Cd, Zn, Pb and Fe concentration in<br />

siakap and tilapia fish were determined by using ICP. The samples were prepared by<br />

using wet digestion with nitric acid 65% and hydrogen peroxide 30%. The previous<br />

study suggest that various of metals were present in the fish samples at different<br />

levels of concentration but these were within the maximum residual levels permitted<br />

by WHO. The expected results show the muscle had the lowest metal concentration<br />

compared with liver and gills.<br />

1988 | UMT UNDERGRADUATE RESEARCH DAY 2018

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