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Analysis Of Non-Volatile Toxic Heavy Metals (Cd, Pb, Cu,Cr A

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Bisma Wiranegara

on 23 October 2013

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Transcript of Analysis Of Non-Volatile Toxic Heavy Metals (Cd, Pb, Cu,Cr A

Analysis Of Non-Volatile Toxic Heavy Metals (Cd, Pb, Cu,Cr And Zn) In ALLIUM SATIVUM (Garlic) And Soil Samples ,Collected From Different Locations Of Punjab, Pakistan By Atomic Absorption Spectroscopy
presented by
Bisma Wiranegara J3L112064
Herry Prayitno J3L212203
Ismail Sunny J3L111041

certain heavy metals essential nutrients for a healthy life in a very small number such as (Fe, Cu, Mn, and Zn). Heavy metals become toxic when they are not metabolized by the body and accumulate in the soft tissues. because heavy metals are non-biodegradable so they are causing serious health hazards to humans and animals. sources of heavy metals are foods eaten by humans Garlic is an essential ingredient of almost every meal and is widely used in Pakistan as antioxidant, antimicrobial and antifungal activity.
The metal content in garlic samples was found to be in increasing order as Cr> Pb> Cd> Cu> Zn. Infield metal content in the soil also followed the same trend. In garlic samples, Pb, Cd, Cr, Zn and Cu ranged from 0.039mg/L to 0.757mg/L, N.D to 1.211mg/L, 0.03mg/L to 0.451mg/L, 0.02mg/Lto0.42mg/L and 0.451mg/L to 0.893mg/L respectively. In soil samples, Pb, Cd, Cr, Zn and Cu were ranged from 0.459mg/L to 0.797mg/L, 0.205mg/L to1.062mg/L, 0.074mg/L to 2.598mg/L, 0.124mg/L to 0.276mg/L and 0.494mg/L to 0.921mg/L respectively. In our study, the Pb and Cd was found more in garlic from Gujranwala and Jaranwala, Cu and Zn were more in samples from Kasur while Cr was predominant in sample from Sheikhupura. Heavy metal content in soil and garlic samples was within the permissible limits proposed by World Health Organization (WHO).
material and methode
preparation sampel
preparation of working standard
question ????
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