Solid-Phase Microextraction and Determination of Tin Species in Beverages and Food Samples by Using Poly (epsilon-Caprolactone-b-4-Vinyl Benzyl-g-Dimethyl Amino Ethyl Methacrylate) Polymer in Syringe System: a Multivariate Study

WOS: 000438995800020A new solid-phase microextraction (SP mu E) procedure has been developed for separation and preconcentration of Sn ions by using graphite furnace atomic absorption spectrometry (GFAAS). This technique is based on the complexation of Sn(IV) ions with 1-(2-pyridylazo)-2-naphthol (PAN). The poly (epsilon-caprolactone-b-4-vinyl benzyl-g-dimethyl amino ethyl methacrylate) polymer (PCL vacr) was used as an adsorbent, and it was loaded in micropipette tip of syringe system. Sn(IV) ions were adsorbed on polymer at pH 6. Different experimental conditions were optimized such as pH, amount of complexing agent, and amount of adsorbent. The detection limit (LOD), limit of quantification, preconcentration factor (PF), and relative standard deviation (RSD) were found as 4.5 ng L-1, 13.5 ng L-1, 100, and 3.3%, respectively. Certified reference materials were used to confirm the accuracy of the investigated procedure, and the procedure was successfully practiced for determination of entire concentration of tin within beverages and different food samples.TUBITAK, Government of Turkey, through the 2216 fellowship program; Gaziosmanpasa UniversityGaziosmanpasa University; King Fahd University of Petroleum and Minerals, Research Institute, Center for Environment and Water; Turkish Academy of SciencesTurkish Academy of SciencesRizwan Ali Zounris gratefully acknowledge the financial support from TUBITAK, Government of Turkey, through the 2216 fellowship program for the foreign citizens and providing financial support. Dr. Mustafa Tuzen thank the Gaziosmanpasa University and King Fahd University of Petroleum and Minerals, Research Institute, Center for Environment and Water for their supports. He also thank the Turkish Academy of Sciences for the financial support