Used gold nano-particles as an on/off switch for response of a potentiometric sensor to Al(III) or Cu(II) metal ions

Mashhadizadeh, Mohammad Hossein; Talemi, Rasoul Pourtaghavi

doi:10.1016/j.aca.2011.02.028

Cited by 43 publications

(12 citation statements)

References 42 publications

(44 reference statements)

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“…In our previous works, we used some nanoparticles in electrochemical investigation and determination of some heavy metals and drugs [30][31][32][33][34][35][36]. To our knowledge there are a few reports on the simultaneous electrochemical determination of COD and AC [37].…”

Section: Introductionmentioning

confidence: 97%

Design of a New Carbon Paste Electrode Modified with TiO₂ Nanoparticles to Use in an Electrochemical Study of Codeine and Simultaneous Determination of Codeine and Acetaminophen in Human Plasma Serum Samples

Mashhadizadeh

Rasouli

2014

Electroanalysis

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A new electrochemical sensor was fabricated via TiO2 nanoparticles onto a carbon paste electrode. Cyclic voltammetry (CV) and differential pulse voltammetry (DPV) studied the response of the modified electrode toward codeine. The effects of pH, modifier amount, pulse amplitude, and scan rate of potential have been examined. Using DPV, we could measure simultaneously codeine and acetaminophen in one mixture. The detection limits of 0.018 and 0.050 µmol L−1 were achieved for codeine and acetaminophen, respectively. The electrooxidation pathway, transfer coefficient, and standard rate constant, are estimated. The proposed voltammetric sensor was successfully applied to determination of codeine and acetaminophen in human plasma serum samples.

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Section: Introductionmentioning

confidence: 97%

Design of a New Carbon Paste Electrode Modified with TiO₂ Nanoparticles to Use in an Electrochemical Study of Codeine and Simultaneous Determination of Codeine and Acetaminophen in Human Plasma Serum Samples

Mashhadizadeh

Rasouli

2014

Electroanalysis

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“…The performances of the three proposed Al(III) electrodes were compared with the previously reported ones [21, 22, 28, 29, 48–52]. As shown in Table 3, the coated paste electrode showed superior response to the target cation ions over the other proposed sensors because of the wide linear range, short response time and Nernstian slope.…”

Section: Resultsmentioning

confidence: 93%

“…The (dE°/dt) cell values 1.8 × 10 À 5 -1.0 × 10 À 1 2.5-4. 5 10 [22] 19.3 2.5 × 10 À 6 1.0 × 10 À 6 -1.0 × 10 À 1 3.0-8.0 10 [28] 20.0 7.0 × 10 À 6 9.0 × 10 À 6 -1.0 × 10 À 1 2.5-4.0 9 [29] 19.8 4.6 × 10 À 7 1.0 × 10 6 -1.0 × 10 À 1 2.0-6.0 8 [48] 19.4 1.0 × 10 À 6 2.0 × 10 À 6 -2.0 × 10 À 2 3.5-5.0 5 [49] 19.2 1.6 × 10 À 7 4.5 × 10 À 7 -1.6 × 10 À 3 2.2-4.0 15 [50] 15.6 5.1 × 10 À 6 1.0 × 10 À 5 -1.5 × 10 À 2 3.5-4.5 < 10 [51] 19.0 5.5 × 10 À 7 1.0 × 10 À 6 -1.0 × 10 À 1 4.0-8.0 15 [52] 19.6 1.0 × 10 À 5 2.04 × 10 À 5 -1.99 × 10 À 1 2.0-4.0 5.0 This Work MCP 20.0 1.00 × 10 À 6 1.00 × 10 À 6 -1.00 × 10 À 2 4.5-6.5 10 PVC…”

Section: Effect Of Temperatureunclassified

Use of Dicloxacillin Al(III) Complex as a Modifier for Determination of Al(III) Ion in Real Samples

2020

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Three new modified electrodes based on a wellcharacterized Al(III)-Dicloxacillin complex (Dicloxacillin: penicillin antibiotic) in the form of carbon-paste, PVC and coated graphite were fabricated and investigated for determination of Al(III) ions in multivitamin syrup, tap water and soda cans. The developed sensors showed excellent sensitives to Al(III) ions with slopes in the range of 16.77-20.00 mV/concentration decade and detection limits of 4.04 × 10 À 4-3.16 × 10 À 7 mol L À 1 as well as fast response time of 10-20 s. The electrodes were effectively applied as indicators in the potentiometric titration of Al (III) with disodium hydrogen phosphate.

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“…As a result of the experimental work, cross interactions with other ions in the studied concentrations were not revealed. As for the possibility of interaction of the residues of MCA with other ions, such as aluminum, several works showed the determination of aluminum in the joint presence with copper ions [50,51]. At the same time, in the developed electrochemical systems with potentiometric detection, the same interaction of copper and aluminum ions was observed.…”

Section: Selectivity Of Fe(iii) Ion Detectionmentioning

confidence: 92%

Mercaptosuccinic-Acid-Functionalized Gold Nanoparticles for Highly Sensitive Colorimetric Sensing of Fe(III) Ions

et al. 2021

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The development of reliable and highly sensitive methods for heavy metal detection is a critical task for protecting the environment and human health. In this study, a qualitative colorimetric sensor that used mercaptosuccinic-acid-functionalized gold nanoparticles (MSA-AuNPs) to detect trace amounts of Fe(III) ions was developed. MSA-AuNPs were prepared using a one-step reaction, where mercaptosuccinic acid (MSA) was used for both stabilization, which was provided by the presence of two carboxyl groups, and functionalization of the gold nanoparticle (AuNP) surface. The chelating properties of MSA in the presence of Fe(III) ions and the concentration-dependent aggregation of AuNPs showed the effectiveness of MSA-AuNPs as a sensing probe with the use of an absorbance ratio of A530/A650 as an analytical signal in the developed qualitative assay. Furthermore, the obvious Fe(III)-dependent change in the color of the MSA-AuNP solution from red to gray-blue made it possible to visually assess the metal content in a concentration above the detection limit with an assay time of less than 1 min. The detection limit that was achieved (23 ng/mL) using the proposed colorimetric sensor is more than 10 times lower than the maximum allowable concentration for drinking water defined by the World Health Organization (WHO). The MSA-AuNPs were successfully applied for Fe(III) determination in tap, spring, and drinking water, with a recovery range from 89.6 to 126%. Thus, the practicality of the MSA-AuNP-based sensor and its potential for detecting Fe(III) in real water samples were confirmed by the rapidity of testing and its high sensitivity and selectivity in the presence of competing metal ions.

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Used gold nano-particles as an on/off switch for response of a potentiometric sensor to Al(III) or Cu(II) metal ions

Cited by 43 publications

References 42 publications

Design of a New Carbon Paste Electrode Modified with TiO₂ Nanoparticles to Use in an Electrochemical Study of Codeine and Simultaneous Determination of Codeine and Acetaminophen in Human Plasma Serum Samples

Design of a New Carbon Paste Electrode Modified with TiO₂ Nanoparticles to Use in an Electrochemical Study of Codeine and Simultaneous Determination of Codeine and Acetaminophen in Human Plasma Serum Samples

Use of Dicloxacillin Al(III) Complex as a Modifier for Determination of Al(III) Ion in Real Samples

Mercaptosuccinic-Acid-Functionalized Gold Nanoparticles for Highly Sensitive Colorimetric Sensing of Fe(III) Ions

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Used gold nano-particles as an on/off switch for response of a potentiometric sensor to Al(III) or Cu(II) metal ions

Cited by 43 publications

References 42 publications

Design of a New Carbon Paste Electrode Modified with TiO2 Nanoparticles to Use in an Electrochemical Study of Codeine and Simultaneous Determination of Codeine and Acetaminophen in Human Plasma Serum Samples

Design of a New Carbon Paste Electrode Modified with TiO2 Nanoparticles to Use in an Electrochemical Study of Codeine and Simultaneous Determination of Codeine and Acetaminophen in Human Plasma Serum Samples

Use of Dicloxacillin Al(III) Complex as a Modifier for Determination of Al(III) Ion in Real Samples

Mercaptosuccinic-Acid-Functionalized Gold Nanoparticles for Highly Sensitive Colorimetric Sensing of Fe(III) Ions

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Design of a New Carbon Paste Electrode Modified with TiO₂ Nanoparticles to Use in an Electrochemical Study of Codeine and Simultaneous Determination of Codeine and Acetaminophen in Human Plasma Serum Samples

Design of a New Carbon Paste Electrode Modified with TiO₂ Nanoparticles to Use in an Electrochemical Study of Codeine and Simultaneous Determination of Codeine and Acetaminophen in Human Plasma Serum Samples