Amperometric immunosensor for nonylphenol determination based on peroxidase indicating reaction

Evtugyn, Gennady; Eremin, Sergei A.; Shaljamova, R.P.; Ismagilova, Aliya; Budnikov, H. C.

doi:10.1016/j.bios.2005.11.025

Cited by 34 publications

(9 citation statements)

References 25 publications

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“…A limit of detection as low as 1.0×10 −8 mol·L −1 is estimated (S/N = 3). Compared with other electrochemical sensors, such as 3.2 × 10 −7 mol·L −1 for TiO 2 -nano Au-molecularly imprinted sensor [19], 2.6 × 10 −7 mol·L −1 for NiTPPS/CNTs sensor [27] and 10 μg·L −1 (≈4.5 × 10 −8 mol·L −1 ) for HRP-based immunosensor [28], this is a competitive value.…”

Section: Resultsmentioning

confidence: 92%

A Facile Electrochemical Sensor for Nonylphenol Determination Based on the Enhancement Effect of Cetyltrimethylammonium Bromide

Lü

Zhang

Wang

et al. 2013

Sensors

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A facile electrochemical sensor for the determination of nonylphenol (NP) was fabricated in this work. Cetyltrimethylammonium bromide (CTAB), which formed a bilayer on the surface of the carbon paste (CP) electrode, displayed a remarkable enhancement effect for the electrochemical oxidation of NP. Moreover, the oxidation peak current of NP at the CTAB/CP electrode demonstrated a linear relationship with NP concentration, which could be applied in the direct determination of NP. Some experimental parameters were investigated, such as external solution pH, mode and time of accumulation, concentration and modification time of CTAB and so on. Under optimized conditions, a wide linear range from 1.0 × 10−7 mol·L−1 to 2.5 × 10−5 mol·L−1 was obtained for the sensor, with a low limit of detection at 1.0 × 10−8 mol·L−1. Several distinguishing advantages of the as-prepared sensor, including facile fabrication, easy operation, low cost and so on, suggest a great potential for its practical applications.

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Section: Resultsmentioning

confidence: 92%

A Facile Electrochemical Sensor for Nonylphenol Determination Based on the Enhancement Effect of Cetyltrimethylammonium Bromide

Lü

Zhang

Wang

et al. 2013

Sensors

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“…The linear ranges and detection limits obtained for TOP, OP, and NP determination by DPV on PGE are similar to or even better than (e.g., TOP) some others presented in the literature. 10,12,16,17 The described PGE has the main advantage of a cheap, simple, and fast electrode surface "regeneration", which enhances its applicability to routine analysis and offers the possibility of direct on-field testing by using a portable potentiostat. The PGE constitutes, thus, a less expensive alternative to commercially available disposable screen-printed electrodes.…”

Section: Discussionmentioning

confidence: 99%

“…These results are similar to or even better than (e.g., for TOP) those reported in the literature for the electrochemical detection of different APs using various working electrodes. 10,12,16,17 Selectivity: Common metallic ions like Cu 2+ , Pb 2+ , and Cd 2+ , which can exist in water samples, do not interfere in the voltammetric determination of APs because as cations they are not oxidized voltammetrically. DPV studies performed in PBS (pH 7.40) at activated PGE on a mixture of common PAHs did not show any voltammetric signal in the potential range of 0.0 to 1000 mV, such that neither of these compounds interfere in AP voltammetric determination on PGE.…”

Section: Validation Of the Methodsmentioning

confidence: 99%

Disposable carbon electrodes as an alternative for the direct voltammetric determination of alkyl phenols from water samples

David¹,

Badea²,

Radu³

2013

Turkish Journal of Chemistry

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“…Generally, alkylphenols are detected by liquid chromatography [5][6][7][8] and gas chromatography. [9][10][11] Although electrochemical methods were also exploited for the determination of alkylphenols, most of them aimed at nonylphenol [12][13][14] and just a few concerned other alkylphenols. As examples, Ana-Maria Gurban et al 15 developed an alkylphenol biosensor by entrapping horseradish peroxidase in a nanocomposite gel of single-walled carbon nanotubes and 1-butyl-3-methylimidazolium hexauorophosphate ionic liquid.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical sensors of octylphenol based on molecularly imprinted poly(3,4-ethylenedioxythiophene) and poly(3,4-ethylenedioxythiophene–gold nanoparticles)

2015

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Two novel molecularly imprinted polymer (MIP)-graphene nanoribbon (GNR) composite film coated glassy carbon electrodes (GCE) were presented. The GNRs were prepared by unzipping multiwalled carbon nanotubes through a microwave-assisted method in the presence of ionic liquid. The 4-tert-octylphenol (OP) imprinted polymers were electrochemically synthesized at the GNR modified electrodes (GNRs/GCE), using 3,4-ethylenedioxythiophene (EDOT) and gold nanoparticles (AuNPs)-captured EDOT (EDOT-Au) as monomers, and the resulting electrodes were MIPEDOT/GNRs/GCE and MIPEDOT-Au/GNRs/GCE, respectively. An EDOT-Au precursor solution was prepared by mixing EDOT and AuNPs. The imprinting process and test conditions were optimized. The resulting electrodes MIPEDOT/GNRs/GCE and MIPEDOTAu/GNRs/GCE showed good performance when they were used for the voltammetric determination of OP due to the synergistic effect of GNRs, AuNPs and MIP. Under the optimized conditions, the peak currents of OP at the MIPEDOT/GNRs/GCE and MIPEDOT-Au/GNRs/GCE were linear with its concentration in the ranges of 0.04-8 mM and 0.02-8 mM with sensitivities of 4.87 mA mM À1 and 7.28 mA mM À1 respectively; the corresponding detection limits were 6 nM and 1 nM (S/N ¼ 3). The MIPEDOT-Au/GNRs/GCE was more sensitive than the MIPEDOT/GNRs/GCE due to the enhancement of AuNPs. In addition, the sensors showed good selectivity to OP compared with nonimprinted electrodes. When they were applied to the electrochemical determination of OP in real samples, satisfying results were obtained.

show abstract

Amperometric immunosensor for nonylphenol determination based on peroxidase indicating reaction

Cited by 34 publications

References 25 publications

A Facile Electrochemical Sensor for Nonylphenol Determination Based on the Enhancement Effect of Cetyltrimethylammonium Bromide

A Facile Electrochemical Sensor for Nonylphenol Determination Based on the Enhancement Effect of Cetyltrimethylammonium Bromide

Disposable carbon electrodes as an alternative for the direct voltammetric determination of alkyl phenols from water samples

Electrochemical sensors of octylphenol based on molecularly imprinted poly(3,4-ethylenedioxythiophene) and poly(3,4-ethylenedioxythiophene–gold nanoparticles)

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