- Gazi University Journal of Science
- Vol: 31 Issue: 1
- Application of 1,6-hexanedithiol and 1-hexanethiol self-assembled monolayers on polycrystalline gold...
Application of 1,6-hexanedithiol and 1-hexanethiol self-assembled monolayers on polycrystalline gold electrode for determination of Fe(II) using square wave voltammetry
Authors : Tuğba Tabanligil Calam, Erdoğan Hasdemir
Pages : 53-64
View : 19 | Download : 4
Publication Date : 2018-03-01
Article Type : Research
Abstract :Monolayer films modified polycrystalline gold electrode has been fabricated by using self assembled monolayer method of 1,6-hexanedithiol and 1-hexanethiol and used for electro-catalytic oxidations of iron(II). A calibration curve was obtained for Fe(II) in a wide concentration range from 5.00×10 -8 mol.L − 1 to 3.85×10 -5 mol.L − 1 and detection limit of 1.6×10 -8 mol.L − 1 on the Au-HDT electrode. Additionally, on the Au-HT electrode, the linear range from 1.00×10 − 8 mol.L − 1 to 2.56×10 − 5 mol.L − 1 and detection limit of 3.20×10 − 8 mol.L − 1 for the determination of Fe(II) were achieved. Validity of the method and applicability of the electrodes are successfully tested by determination of Fe(II) in real samples .Keywords : Determination of iron, self assembled monolayer, 1-6-hexanedithiol, 1-hexanethiol