Removal of Pb and Cd from aqueous media and fish liver using novel polyurethane foam functionalized with pyrazolone as a new metal ion collector |
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Authors: | N Burham SM Abdel-Azeem MF El-Shahat |
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Institution: | (1) Chemistry Department, Faculty of Science, Fayoum University, Fayoum City, Egypt;(2) Chemistry Department, Faculty of Science, Ain-Shams University, Cairo, Egypt |
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Abstract: | In the present paper, an off-line preconcentration procedure for the determination of cadmium and lead by flame atomic absorption
spectrometry (FAAS) is proposed. Polyurethane foam (PUF) functionalized with o-aminophenol (o-AP) followed by Pyrazolone (Pyr)
packed in a minicolumn was used as a sorbent material. The metals were retained on the modified PUF, from which it could be
eluted and effectively preconcentrated. The detection limits were 0.072 and 0.016 μg L−1 for Pb and Cd respectively. Enrichment factors were 250 and 319 for lead and cadmium respectively. The procedure has been
applied successfully to metal determination in water samples, fish liver and reference material.
![MediaObjects/11532_2009_51_Fig1_HTML.jpg](/content/44258277u9274537/MediaObjects/11532_2009_51_Fig1_HTML.jpg) |
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Keywords: | Functionalized polyurethane foam Pyrazolone Heavy metals Fish liver Tap water |
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