Preconcentration and determination of trace Hg(<scp>ii</scp>) using ultrasound-assisted dispersive solid phase microextraction

Ahmad, Hilal; Koo, Bon Heun; Khan, Rais Ahmad

doi:10.1039/d1ra07898d

Cited by 10 publications

(2 citation statements)

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“…Although these methods have high sensitivity, they are complicated to operate and require sophisticated detection instruments, making their widespread use difficult to achieve. [12][13][14][15][16][17] With the development of technology, uorescence chromatography using uorescent probes for metal detection has attracted great attention because of its cost-effectiveness and excellent detection performance. 18,19 There have been many reports on the detection of Fe 3+ using uorescent probe methods.…”

Section: Introductionmentioning

confidence: 99%

Preparation and performance study of rhodamine B naphthylamide, a fluorescent probe, for the detection of Fe³⁺

Wang,

Lv,

Zuo

et al. 2023

Anal. Methods

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Section: Introductionmentioning

confidence: 99%

Preparation and performance study of rhodamine B naphthylamide, a fluorescent probe, for the detection of Fe³⁺

Wang,

Lv,

Zuo

et al. 2023

Anal. Methods

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“…In recent years, different microextraction techniques coupled with atomic absorption spectrometry have been used for the determination of Hg(II) [15][16][17]; however, very few works are found in the literature in which the speciation of mercury and its subsequent quantification are carried out [18]. Moreover, the analysis of MeHg in water samples is usually carried out using chromatographic techniques, although a derivatizing treatment of the sample is required [19,20].…”

Section: Introductionmentioning

confidence: 99%

Determination of Hg(II) and Methylmercury by Electrothermal Atomic Absorption Spectrometry after Dispersive Solid-Phase Microextraction with a Graphene Oxide Magnetic Material

et al. 2022

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The toxicity of all species of mercury makes it necessary to implement analytical procedures capable of quantifying the different forms this element presents in the environment, even at very low concentrations. In addition, due to the assorted environmental and health consequences caused by each mercury species, it is desirable that the procedures are able to distinguish these forms. In nature, mercury is mainly found as Hg0, Hg2+ and methylmercury (MeHg), with the latter being rapidly assimilated by living organisms in the aquatic environment and biomagnified through the food chain. In this work, a dispersive solid-phase microextraction of Hg2+ and MeHg is proposed using as the adsorbent a magnetic hybrid material formed by graphene oxide and ferrite (Fe3O4@GO), along with a subsequent determination by electrothermal atomic absorption spectrometry (ETAAS). On the one hand, when dithizone at a pH = 5 is used as an auxiliary agent, both Hg(II) and MeHg are retained on the adsorbent. Next, for the determination of both species, the solid collected by the means of a magnet is suspended in a mixture of 50 µL of HNO3 (8% v/v) and 50 µL of H2O2 at 30% v/v by heating for 10 min in an ultrasound thermostatic bath at 80 °C. On the other hand, when the sample is set at a pH = 9, Hg(II) and MeHg are also retained, but if the solid collected is washed with N-acetyl-L-cysteine only, then the Hg(II) remains on the adsorbent, and can be determined as indicated above. The proposed procedure exhibits an enrichment factor of 49 and the determination presents a linear range between 0.1 and 10 µg L−1 of mercury. The procedure has been applied to the determination of mercury in water samples from different sources.

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An Efficient Fluorescent Chemosensing Probe for Total Determination and Speciation of Ultra-Trace Levels of Mercury (II) Species in Water

Alwael,

Alzahrani,

Abduljabbar

et al. 2024

J Fluoresc

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Preconcentration and determination of trace Hg(ii) using ultrasound-assisted dispersive solid phase microextraction

Abstract: Hg(ii) ion adsorption onto an MoS2 surface.

Cited by 10 publications

References 58 publications

Preparation and performance study of rhodamine B naphthylamide, a fluorescent probe, for the detection of Fe³⁺

Preparation and performance study of rhodamine B naphthylamide, a fluorescent probe, for the detection of Fe³⁺

Determination of Hg(II) and Methylmercury by Electrothermal Atomic Absorption Spectrometry after Dispersive Solid-Phase Microextraction with a Graphene Oxide Magnetic Material

An Efficient Fluorescent Chemosensing Probe for Total Determination and Speciation of Ultra-Trace Levels of Mercury (II) Species in Water

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Preconcentration and determination of trace Hg(ii) using ultrasound-assisted dispersive solid phase microextraction

Abstract: Hg(ii) ion adsorption onto an MoS2 surface.

Cited by 10 publications

References 58 publications

Preparation and performance study of rhodamine B naphthylamide, a fluorescent probe, for the detection of Fe3+

Preparation and performance study of rhodamine B naphthylamide, a fluorescent probe, for the detection of Fe3+

Determination of Hg(II) and Methylmercury by Electrothermal Atomic Absorption Spectrometry after Dispersive Solid-Phase Microextraction with a Graphene Oxide Magnetic Material

An Efficient Fluorescent Chemosensing Probe for Total Determination and Speciation of Ultra-Trace Levels of Mercury (II) Species in Water

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Product

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About

Preparation and performance study of rhodamine B naphthylamide, a fluorescent probe, for the detection of Fe³⁺

Preparation and performance study of rhodamine B naphthylamide, a fluorescent probe, for the detection of Fe³⁺