Title of article :
A Simple and Fast Method Based on New Magnetic Ion Im-printed Polymer as a Highly Selective Sorbent for Preconcentra-tion and Determination of Cadmium in Environmental Samples
Author/Authors :
PANJALI, Zahra Dept. of Occupational Health Engineering - School of Public Health - Shahid Beheshti University of Medical Sciences, Tehran , ASGHARINEZHAD, Ali Akbar Dept. of Applied Chemistry - School of Chemistry - Shahid Beheshti University, Tehran , EBRAHIMZADEH, Homeira Dept. of Applied Chemistry - School of Chemistry - Shahid Beheshti University, Tehran , JALILIAN, Niloofar Dept. of Applied Chemistry - School of Chemistry - Shahid Beheshti University, Tehran , YARAHMADI, Rasoul Dept. of Occupational Health Engineering - School of Public Health - Iran University of Medical Sciences, Tehran , SHAHTAHERI, Jamaleddin Dep.t of Occupational Health Engineering - School of Public Health - Tehran University of Medical Sciences, Tehran
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 nanopar-ticles 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), elu-tion/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 envi-ronmental 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.
Keywords :
Cd (II) , Magnetic ion imprinted polymer , Selective extraction , Environmental samples
Journal title :
Astroparticle Physics
