Application of Polyhydroxybutyrate-b-polyethyleneglycol (a block co-polymer) for Solid Phase Extraction of Lead and Copper in Different Food Samples

In present work, a new adsorbent, polyhydroxybutyrate-b-polyethyleneglycol (block copolymer) was used for the preconcentration and separation of copper (Cu) and lead (Pb) ions without consuming expensive complexing reagent. The influence of various parameters like pH, adsorbent amount, and rates of...

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Main Authors: Sham K. Wadhwa, Tasneem Gul Kazi, Mustafa Tuzen, Hassan Imran Afridi, Naeemullah, Kapil Dev Brahman
Format: Article
Language:English
Published: National Centre of Excellence in Analytical Chemsitry 2014-06-01
Series:Pakistan Journal of Analytical & Environmental Chemistry
Online Access:http://ceacsu.edu.pk/PDF%20file/Volume%2015%20No%201/66-73-PJAEC-27092013-23.pdf
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spelling doaj-f016ae6d7b9246c8a45cfd3ce3ea71c62020-11-25T00:12:49ZengNational Centre of Excellence in Analytical ChemsitryPakistan Journal of Analytical & Environmental Chemistry1996-918X2221-52552014-06-011516673Application of Polyhydroxybutyrate-b-polyethyleneglycol (a block co-polymer) for Solid Phase Extraction of Lead and Copper in Different Food SamplesSham K. Wadhwa0Tasneem Gul Kazi1Mustafa Tuzen2Hassan Imran Afridi3Naeemullah4Kapil Dev Brahman5National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, PakistanNational Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, PakistanGaziosmanpasa University, Faculty of Science and Arts, Chemistry Department, 60250 Tokat, TurkeyNational Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, PakistanNational Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, PakistanNational Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, PakistanIn present work, a new adsorbent, polyhydroxybutyrate-b-polyethyleneglycol (block copolymer) was used for the preconcentration and separation of copper (Cu) and lead (Pb) ions without consuming expensive complexing reagent. The influence of various parameters like pH, adsorbent amount, and rates of flow of eluent, sample and sample volumes has been investigated. The polymer does not interact with alkaline-earth metals, transition metals, alkaline, and few anions. The enrichment factor 50 was achieved in this method. The detection limit of method was found to be 0.36 µg L-1 and 1.93 µg L-1 for copper and lead, respectively. The recovery values of both analytes were found >96% and relative standard deviations (RSD) for all experiments were found less than 5%. The present method was validated by the analysis of Cu and Pb contents in various related certified reference materials (CRM) like; NIST SRM 1515 Apple leaves, IAEA-336 Lichen and GBW-07605 Tea. Found results and CRM values were precise and accurate. This developed method was then successfully applied for analysis of Cu and Pb in tap and bottled mineral water and real food samples. http://ceacsu.edu.pk/PDF%20file/Volume%2015%20No%201/66-73-PJAEC-27092013-23.pdf
collection DOAJ
language English
format Article
sources DOAJ
author Sham K. Wadhwa
Tasneem Gul Kazi
Mustafa Tuzen
Hassan Imran Afridi
Naeemullah
Kapil Dev Brahman
spellingShingle Sham K. Wadhwa
Tasneem Gul Kazi
Mustafa Tuzen
Hassan Imran Afridi
Naeemullah
Kapil Dev Brahman
Application of Polyhydroxybutyrate-b-polyethyleneglycol (a block co-polymer) for Solid Phase Extraction of Lead and Copper in Different Food Samples
Pakistan Journal of Analytical & Environmental Chemistry
author_facet Sham K. Wadhwa
Tasneem Gul Kazi
Mustafa Tuzen
Hassan Imran Afridi
Naeemullah
Kapil Dev Brahman
author_sort Sham K. Wadhwa
title Application of Polyhydroxybutyrate-b-polyethyleneglycol (a block co-polymer) for Solid Phase Extraction of Lead and Copper in Different Food Samples
title_short Application of Polyhydroxybutyrate-b-polyethyleneglycol (a block co-polymer) for Solid Phase Extraction of Lead and Copper in Different Food Samples
title_full Application of Polyhydroxybutyrate-b-polyethyleneglycol (a block co-polymer) for Solid Phase Extraction of Lead and Copper in Different Food Samples
title_fullStr Application of Polyhydroxybutyrate-b-polyethyleneglycol (a block co-polymer) for Solid Phase Extraction of Lead and Copper in Different Food Samples
title_full_unstemmed Application of Polyhydroxybutyrate-b-polyethyleneglycol (a block co-polymer) for Solid Phase Extraction of Lead and Copper in Different Food Samples
title_sort application of polyhydroxybutyrate-b-polyethyleneglycol (a block co-polymer) for solid phase extraction of lead and copper in different food samples
publisher National Centre of Excellence in Analytical Chemsitry
series Pakistan Journal of Analytical & Environmental Chemistry
issn 1996-918X
2221-5255
publishDate 2014-06-01
description In present work, a new adsorbent, polyhydroxybutyrate-b-polyethyleneglycol (block copolymer) was used for the preconcentration and separation of copper (Cu) and lead (Pb) ions without consuming expensive complexing reagent. The influence of various parameters like pH, adsorbent amount, and rates of flow of eluent, sample and sample volumes has been investigated. The polymer does not interact with alkaline-earth metals, transition metals, alkaline, and few anions. The enrichment factor 50 was achieved in this method. The detection limit of method was found to be 0.36 µg L-1 and 1.93 µg L-1 for copper and lead, respectively. The recovery values of both analytes were found >96% and relative standard deviations (RSD) for all experiments were found less than 5%. The present method was validated by the analysis of Cu and Pb contents in various related certified reference materials (CRM) like; NIST SRM 1515 Apple leaves, IAEA-336 Lichen and GBW-07605 Tea. Found results and CRM values were precise and accurate. This developed method was then successfully applied for analysis of Cu and Pb in tap and bottled mineral water and real food samples.
url http://ceacsu.edu.pk/PDF%20file/Volume%2015%20No%201/66-73-PJAEC-27092013-23.pdf
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