Abstract
A new adsorbent, polyhydroxybutyrate-b-polyethyleneglycol, was used for the separation and preconcentration of copper(II) and lead(II) ions prior to their flame atomic absorption spectrometric detections. The influences of parameters such as pH, amount of adsorbent, flow rates and sample volumes were investigated. The polymer does not interact with alkaline, alkaline-earth metals and transition metals. The enrichment factor was 50. The detection limits were 0.32 μg L-1 and 1.82 μg L-1 for copper and lead, respectively. The recovery values were found >95%. The relative standard deviations were found to be less than 6%. The validation of the procedure was performed by analysing certified reference materials; NIST SRM 1515 Apple leaves, IAEA-336 Lichen and GBW-07605 Tea. The method was successfully applied for the analysis of analytes in water and food samples.
| Original language | English |
|---|---|
| Pages (from-to) | 75-80 |
| Number of pages | 6 |
| Journal | Food Chemistry |
| Volume | 152 |
| DOIs | |
| State | Published - 1 Jun 2014 |
| Externally published | Yes |
Bibliographical note
Funding Information:Sham Kumar wishes to thank TUBITAK-BIDEB, Ankara, Turkey, for sponsoring this research project under the Research Fellowship Program for Foreign Citizens (2216). Dr. Mustafa Tuzen wishes to thank Turkish Academy of Sciences for financial support. This work was also partially supported by TUBITAK (Grant # 211T016 ) in terms of the preparation of the polyester.
Keywords
- Copper
- Food
- Lead
- Polyhydroxybutyrate-b-polyethyleneglycol
- Solid phase extraction
- Water
ASJC Scopus subject areas
- Analytical Chemistry
- Food Science