Adsorption and deposition-assisted anodic stripping voltammetry for determination of antimony(III) in presence of hematoxylin on glassy carbon electrode

WOS: 000393244400094PubMed ID: 28107989A validated simple, reliable and sensitive adsorptive anodic stripping voltammetric procedure is suggested for the accurate determination of antimony(III) on a glassy carbon electrode (GCE) in the presence of hematoxylin (HT), used as a chemical receptor in antimony analysis for the first time. Under optimized conditions, the plot of stripping peak current versus Sb(III) concentration showed two dynamic linear ranges, 1.0x10(-4) - 0.01 mu m (R-2 =0.9986) and 0.01 - 1.0 mu m (R-2 =0.9973) with a detection limit of 9.5x10(-11) mol (11.57 ng L-1). The RSD values of intra-day precision and inter-day precision (n =5) for 5.0x10(-7) mol L-1 Sb(III) were calculated as 1.63% and 2.27%, respectively, indicating that the proposed method has a good precision. Recoveries for Sb(III) in water samples were found to be between 97% and 102% for the 5.0x10(-7) mol L-1 Sb(III), proving the reliability and accuracy of the method proposed.Ege University Research FoundationEge University [11-FEN-90]The authors are grateful to Ege University Research Foundation (Project no: 11-FEN-90) for financial support. We would also like to thank members of thesis committee, Dr. Umran Yuksel, Dr. Sibel Kilinc Alpat and Dr. Muserref Arda, for their valuable suggestions throughout the study and Mr. G. H. Lee for proof-reading the final text