Application of 1,6-hexanedithiol and 1-hexanethiol self-assembled monolayers on polycrystalline gold electrode for determination of Fe(II) using square wave voltammetry

Year 2018, Volume: 31 Issue: 1, 53 - 64, 01.03.2018

Tuğba Tabanlıgil Calam , Erdoğan Hasdemir

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

References

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