Gold nanoparticle included graphene oxide modified electrode: Picomole detection of metal ions in seawater by stripping voltammetry

Üstündağ, İlknur; Erkal, Aslı; Koralay, Tamer; Kadıoğlu, Yusuf Kağan; Jeon, Seungwon

doi:10.1134/s1061934816070108

Cited by 14 publications

(3 citation statements)

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“…The few sensors that have been integrated in submersibles appear to be in the early stages of commercialization. As a result, meaningful data is only gathered through the inventors' measurements [135]. Electrochemical sensors have the potential to transform seawater analysis programs, but bringing this vision to fruition would need well-planned phases and targeted research.…”

Section: Voltammetric Environmental Sensorsmentioning

confidence: 99%

Frontiers in Voltammetry

2023

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Section: Voltammetric Environmental Sensorsmentioning

confidence: 99%

Frontiers in Voltammetry

2023

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“…In the past few years, several analytical technologies have been developed for Cu 2+ detection, including atomic absorption spectrometry [12], inductively coupled plasma (ICP) atomic emission spectrometry [13,14], ICP mass spectrometry [15], surface plasmon resonance spectroscopy (SPR) [16], voltammetry [17], electrochemical route [18] and so on. The above-mentioned analytical technologies show high sensitivity, selectivity and accuracy in Cu 2+ detection that from different sources such as water, soils or foods.…”

Section: Introductionmentioning

confidence: 99%

Excellent fluorescence detection of Cu²⁺ in water system using N-acetyl-L-cysteines modified CdS quantum dots as fluorescence probe

et al. 2021

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View of the negative influence of metal ions on natural environment and human health, fast and quantitative detection of metals ions in water systems is significant. Ultra-small grain size CdS quantum dots (QDs) modified with N-acetyl-L-cysteines (NALC) (NALC-CdS QDs) are successfully prepared via a facile hydrothermal route. Based on the changes of fluorescence intensity of NALC-CdS QDs solution after adding metal ions, the fluorescence probe made from the NALC-CdS QDs is developed to detect metal ions in water systems. Among various metal ions, the fluorescence of NALC-CdS QDs effectively quenched by the addition of Cu 2+ , the probe shows high sensitivity and selectivity for detecting Cu 2+ in other interferential metal ions coexisted system. Importantly, the fluorescence intensity of NALC-CdS QDs changes upon the concentration of Cu 2+ , the probe displays an excellent linear relationship between the fluorescence quenching rate and the concentration of Cu 2+ in ranging from 1 to 25 μM. Besides, the detected limitation of the probe towards Cu 2+ as low as 0.48 μM. The measurement of Cu 2+ in real water sample is also carried out using the probe. The results indicate that NALC-CdS QDs fluorescence probe may be a promising candidate for quantitative Cu 2+ detection in practical application.

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“…Sensitive Hg (II) determinations in water were achieved with glassy carbon [26,27], or screen-printed carbon electrodes (SPCEs) [28] modified with AuNPs and/or nanohybrids. SPCEs have advantages such as low cost and little amount of sample and reagents required.…”

Section: Introductionmentioning

confidence: 99%

Paper-based electrochemical transducer modified with nanomaterials for mercury determination in environmental waters

Sánchez-Calvo

Fernández‐Abedul

Blanco‐López

et al. 2019

Sensors and Actuators B: Chemical

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A sensor for Hg (II) determination in water was developed by using paper working electrodes modified with nanomaterials. The cellulose matrix was modified with hybrids of carbon nanofibers (CNFs) or reduced graphene oxide (rGO) and gold nanoparticles (AuNPs), in order to increase the selectivity and sensitivity. The AuNPs helped the electrodeposition of Hg (II) at more positive potentials, due to their affinity for mercury. The determination was possible up to 1.2 µM with no interference of other heavy metals such as Cd (II), Pb (II), Cu (II) and Zn (II). The CNFs/AuNPs modified paper-based electrode was the most sensitive option with a detection limit of 30 nM.River water samples were evaluated by the standard addition method.

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Gold nanoparticle included graphene oxide modified electrode: Picomole detection of metal ions in seawater by stripping voltammetry

Cited by 14 publications

References 50 publications

Frontiers in Voltammetry

Frontiers in Voltammetry

Excellent fluorescence detection of Cu²⁺ in water system using N-acetyl-L-cysteines modified CdS quantum dots as fluorescence probe

Paper-based electrochemical transducer modified with nanomaterials for mercury determination in environmental waters

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Gold nanoparticle included graphene oxide modified electrode: Picomole detection of metal ions in seawater by stripping voltammetry

Cited by 14 publications

References 50 publications

Frontiers in Voltammetry

Frontiers in Voltammetry

Excellent fluorescence detection of Cu2+ in water system using N-acetyl-L-cysteines modified CdS quantum dots as fluorescence probe

Paper-based electrochemical transducer modified with nanomaterials for mercury determination in environmental waters

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Product

Resources

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Excellent fluorescence detection of Cu²⁺ in water system using N-acetyl-L-cysteines modified CdS quantum dots as fluorescence probe