Publication:
Graphene/polyvinylpyrrolidone/polyaniline nanocomposite-modified electrode for simultaneous determination of parabens by high performance liquid chromatography

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Issued Date

2016

Resource Type

Article

File Type

application/pdf

ISSN

399140

DOI

10.1016/j.talanta.2015.05.044

Other identifier(s)

2-s2.0-84949097632

Rights Holder(s)

Scopus

Bibliographic Citation

Talanta. Vol 148, (2016), p.655-660

Suggested Citation

Kajornkavinkul S., Punrat E., Siangproh W., Rodthongkum N., Praphairaksit N., Chailapakul O. Graphene/polyvinylpyrrolidone/polyaniline nanocomposite-modified electrode for simultaneous determination of parabens by high performance liquid chromatography. Talanta. Vol 148, (2016), p.655-660. doi:10.1016/j.talanta.2015.05.044 Retrieved from: https://hdl.handle.net/20.500.14740/5721

Title

Graphene/polyvinylpyrrolidone/polyaniline nanocomposite-modified electrode for simultaneous determination of parabens by high performance liquid chromatography

Author(s)

Kajornkavinkul S.
 Punrat E.
 Siangproh W.
 Rodthongkum N.
 Praphairaksit N.
 Chailapakul O.

Abstract

A nanocomposite of graphene (G), polyvinylpyrrolidone (PVP) and polyaniline (PANI) modified onto screen-printed carbon electrode (SPCE) using an electrospraying technique was developed for simultaneous determination of five parabens in beverages and cosmetic products by high performance liquid chromatography. PVP and PANI were used as the dispersing agents of graphene, and also for the enhancement of electrochemical conductivity of the electrode. The electrochemical behavior of each paraben was investigated using the G/PVP/PANI nanocomposite-modified SPCE, compared to the unmodified SPCE. Using HPLC along with amperometric detection at a controlled potential of +1.2 V vs Ag/AgCl, the chromatogram of five parabens obtained from the modified SPCE exhibits well defined peaks and higher current response than those of its unmodified counterpart. Under the optimal conditions, the calibration curves of five parabens similarly provide a linear range between 0.1 and 30 μg mL-1 with the detection limits of 0.01 μg mL-1for methyl paraben (MP), ethyl paraben (EP) and propyl paraben (PP), 0.02 and 0.03 μg mL-1 for isobutyl paraben (IBP) and butyl paraben (BP), respectively. Furthermore, this proposed method was applied for the simultaneous determination of five parabens in real samples including a soft drink and a cosmetic product with satisfactory results, yielding the recovery in the range of 90.4-105.0%. © 2015 Elsevier B.V.

Subject(s)

Beverages
 Chromatographic analysis
 Cosmetics
 Electrochemical electrodes
 Graphene
 High performance liquid chromatography
 Liquids
 Nanocomposites
 Polyaniline
 Propylparaben
 Amperometric detection
 Electrochemical behaviors
 Electrospraying
 Modified electrodes
 Polyanilines (PAni)
 Polyvinyl pyrrolidone
 Screen-printed carbon electrodes
 Simultaneous determinations
 Parabens
 4 hydroxybenzoic acid ester
 Aniline derivative
 Graphite
 Nanocomposite
 Polyaniline
 Povidone
 Chemistry
 Devices
 Electrospray mass spectrometry
 High performance liquid chromatography
 Ion selective electrode
 Procedures
 Aniline Compounds
 Chromatography, High Pressure Liquid
 Graphite
 Ion-Selective Electrodes
 Nanocomposites
 Parabens
 Povidone
 Spectrometry, Mass, Electrospray Ionization

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URI

https://hdl.handle.net/20.500.14740/5721

Collections

Scopus: Year 1983-2021

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