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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| Format: | Article |
| Language: | English |
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National Centre of Excellence in Analytical Chemsitry
2014-06-01
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| 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 |
| _version_ | 1811319317693726720 |
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| author | Sham K. Wadhwa Tasneem Gul Kazi Mustafa Tuzen Hassan Imran Afridi Naeemullah Kapil Dev Brahman |
| author_facet | Sham K. Wadhwa Tasneem Gul Kazi Mustafa Tuzen Hassan Imran Afridi Naeemullah Kapil Dev Brahman |
| author_sort | Sham K. Wadhwa |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-04-13T12:40:26Z |
| format | Article |
| id | doaj.art-f016ae6d7b9246c8a45cfd3ce3ea71c6 |
| institution | Directory Open Access Journal |
| issn | 1996-918X 2221-5255 |
| language | English |
| last_indexed | 2024-04-13T12:40:26Z |
| publishDate | 2014-06-01 |
| publisher | National Centre of Excellence in Analytical Chemsitry |
| record_format | Article |
| series | Pakistan Journal of Analytical & Environmental Chemistry |
| spelling | doaj.art-f016ae6d7b9246c8a45cfd3ce3ea71c62022-12-22T02:46:32ZengNational 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 |
| 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 |
| title | 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_short | 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 |
| url | http://ceacsu.edu.pk/PDF%20file/Volume%2015%20No%201/66-73-PJAEC-27092013-23.pdf |
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