Journal Title
Title of Journal: J IRAN CHEM SOC
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Abbravation: Journal of the Iranian Chemical Society
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Publisher
Springer Berlin Heidelberg
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Authors: Shahram Seidi
Publish Date: 2017/01/28
Volume: 14, Issue: 6, Pages: 1159-1167
Abstract
Dissolved carbon dioxide flotationassisted insyringe dispersive liquid–liquid microextraction DCFISDLLME followed by microsampling flame atomic absorption spectrometry was developed as a simple inexpensive and fast method for extraction and determination of PdII In the proposed approach NN′bis naphthylideneimino diethylenetriamine NAPdien was utilized as a selective complexing reagent for PdII ion Several influential factors on the extraction efficiency including types and volumes of extraction and disperser solvents pH of the sample solution concentration of NAPdien and interfering ions were studied By applying the optimal conditions a preconcentration factor of 287 and limit of detection of 25 ng mL−1 were provided by the proposed method Linearity was in the range of 10–400 ng mL−1 with a correlation coefficient R 2 of 09968 Intraday RSD values for five repetitive measurements of the spiked solutions at the concentrations of 20 and 100 ng mL−1 were 52 and 24 respectively whereas it was obtained within the range of 36–186 for the real samples Interday RSD values of the spiked solutions were found to be 96 and 87 respectively The results demonstrated that except for Fe2+ and Fe3+ no remarkable interfering effect was created by the other studied ions for determination of PdII so that the tolerance limits W Ion/W PdII of the major cations and anions were in the range of 1000–10000 Finally DCFISDLLME was successfully applied for determination of PdII in different water samples and the obtained relative recoveries in the range of 945–105 illustrated favorable accuracies for the proposed method
Keywords:
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