Determination of heavy metals (copper, zinc, lead and cadmium) in cockle samples

Hisyamuddin Rahim Marsidi, (2008) Determination of heavy metals (copper, zinc, lead and cadmium) in cockle samples. Universiti Malaysia Sabah. (Unpublished)


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Determination of heavy metal copper (Cu), zinc (Zn), Cadmium (Cd) and lead (Pb) already been done on two types of cockles that is fresh and dried cockle. This two type of cockles is undergo two different methodology that are dry-ashing and wet digestion process before analyzed using Flame Atomic Absorption Spectroscopy (FAAS). For the result using dry-ashing method, the concentration of Cu is 5.83 µgg�¹ in fresh sample and 7.33 µgg�¹ in dried sample. For Zn concentration is 53.03 µgg�¹ in fresh sample and 158.18 µgg�¹ in dried cockle. As for Cd, the concentration for fresh cockle is 0.85 µgg�¹ and 1.2 µgg�¹ for dried sample and for Pb concentration in fresh sample is 2.1 µg/g�¹ and 1.5 µgg�¹ for dried sample. As for result using wet digestion method, the concentration Cu in fresh cockle sample is 3.43 µgg�¹ and 3.73 µgg�¹ for dried one. For Zn concentration in fresh cockle is 59.68 Ilgg-1 and 63.30 µgg-1 for dried cockle. While for Cd concentration, 1.65 µgg�¹ obtained in fresh cockle and 1.53µgg-1 in dried cockle. Lastly, the concentration for Pb is 1.45 µgg�¹ in fresh cockle and 0.88 µgg�¹ in dried cockle.

Item Type: Academic Exercise
Uncontrolled Keywords: heavy metal, cockles, dry-ashing, wet digestion process, Hame Atomic Absorption Spectroscopy
Subjects: Q Science > QD Chemistry
Divisions: SCHOOL > School of Science and Technology
Depositing User: Unnamed user with email
Date Deposited: 18 May 2016 05:34
Last Modified: 30 Oct 2017 02:44

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