DOAJ Open Access 2015

Amperometric Detection of Hydroquinone at Modified Ionic Liquid Graphene Composite Paste Electrode

Hidayahtun Nur Amirah Mustafa Illyas Md Isa Noorshida Mohd Ali Norhayati Hashim Mazlina Musa +1 lainnya

Abstrak

The ionic liquid 1-ethyl-3-methylimidazolium bromide (EMIMBr) based graphene composite paste electrode (GrPE) was fabricated and applied for the determination of hydroquinone. By using square wave voltammetry, the electrochemical response of hydroquinone on EMIMBr-GrPE was greatly enhanced in 0.7 M phosphate buffer solution (pH 7.0). Under optimized conditions, the proposed electrode showed a linear relationship with concentration in the range of 1.0×10-6 to 1.0×10-2 m hydroquinone with limit of detection of 2.77x10’7 M. The interferences of Ba2+, Cu2+, Na+, K+, NO3’, Cl’, SO42’, glycine, glucose, fructose and sucrose were negligible. Electrochemical impedance spectroscopy indicated that the charge transfer at the electrode’solution interface was excellent. The proposed electrode was successfully applied to determine of hydroquinone in wastewater and cosmetic creams with range of recovery 97 - 104%.

Topik & Kata Kunci

Industrial electrochemistry Physical and theoretical chemistry

Penulis (6)

Hidayahtun Nur Amirah Mustafa

Illyas Md Isa

Noorshida Mohd Ali

Norhayati Hashim

Mazlina Musa

S. Ab Ghani

Format Sitasi

APA MLA BibTeX

Mustafa, H.N.A., Isa, I.M., Ali, N.M., Hashim, N., Musa, M., Ghani, S.A. (2015). Amperometric Detection of Hydroquinone at Modified Ionic Liquid Graphene Composite Paste Electrode. https://doi.org/10.1016/S1452-3981(23)11173-4

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Informasi Jurnal

Tahun Terbit: 2015
Sumber Database: DOAJ
DOI: 10.1016/S1452-3981(23)11173-4
Akses: Open Access ✓