A Simple and Fast Method Based on New Magnetic Ion Imprinted Polymer as a Highly Selective Sorbent for Preconcentration and Determination of Cadmium in Environmental Samples
-
Zahra PANJALI
,
Ali Akbar ASGHARINEZHAD
,
Homeira EBRAHIMZADEH
,
Niloofar JALILIAN
,
Rasoul YARAHMADI
,
Seyed Jamaleddin SHAHTAHERI
Abstract
Background: The analysis of heavy metals at trace level is one of the main toxicologists concern, due to their vital rules in human`s life. Cadmium is one of these toxic heavy metals, which released to the environment from various industries.
Methods: In order to determine Cd (II) ions in various matrices magnetic ion-imprinted polymer (IIP) method has been developed and applied. This nano-sorbent has been synthesized by coating an IIP compound on Fe3O4 nanoparticles core to achieve highest surface area. This polymer has been used to evaluate Cd (II) levels in food, river, and wastewater in Tehran, Iran.
Results: Fe3O4@Cd-IIP was stable up to 300 ᵒC. The various factors such as sample pH (optimized as 7), elution/sorption time (5 min), eluent amount (4 mL HCL), and its concentration (2 mol L-1) were optimized. Analysis instrument in all steps was Flame Atomic Abortion Spectrophotometer (FAAS). In this study, the detection limit was determined down to 0.6 μg L-1.
Conclusion: This method was applied successfully for the preconcentration and determination of Cd (II) ions in environmental samples obtained from rivers, various foods and wastewater. In addition, the accuracy of the method was confirmed by analyzing a certified reference material (Seronorm LOT NO2525) and spiked real samples.
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| Issue | Vol 45 No 8 (2016) | |
| Section | Original Article(s) | |
| Keywords | ||
| Cd (II) Magnetic ion imprinted polymer Selective extraction Environmental samples | ||
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