Gold-nanoparticle-based graphite furnace atomic absorption spectrometry amplification and magnetic separation method for sensitive detection of mercuric ions

Hsu, I-Hsiang; Hsu, Tun-Chieh; Sun, Yuh‐Chang

doi:10.1016/j.bios.2011.04.048

Cited by 31 publications

(10 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The determination of mercury ions in contaminated samples is generally performed by instrumental methods, such as inductively coupled plasma mass spectrometry (Ugo and others ), high‐performance liquid chromatography (Balarama Krishna and others ), atomic absorption spectrometry (Hsu and others ), and electrochemical methods (Zhu and others ). Although these methods offer excellent sensitivity, their major drawbacks are high cost and complex and time‐consuming test protocols.…”

Section: Introductionmentioning

confidence: 99%

Using L‐Arginine‐Functionalized Gold Nanorods for Visible Detection of Mercury(II) Ions

Guan

Wang

Gunasekaran

2015

Journal of Food Science

View full text Add to dashboard Cite

A rapid and simple approach for visible determination of mercury ions (Hg(2+) ) in aqueous solutions was developed based on surface plasmon resonance phenomenon using L-arginine-functionalized gold nanorods (AuNRs). At pH greater than 9, the deprotonated amine group of L-arginine on the AuNRs bound with Hg(2+) leading to the side-by-side assembly of AuNRs, which was verified by transmission electron microscopy images. Thus, when Hg(2+) was present in the test solution, a blue shift of the typical longitudinal plasmon band of the AuNRs was observed in the ultra violet-visible-near infrared (UV-Vis-NIR) spectra, along with a change in the color of the solution, which occurred within 5 min. After carefully optimizing the potential factors affecting the performance, the L-arginine/AuNRs sensing system was found to be highly sensitive to Hg(2+) , with the limit of detection of 5 nM (S/N = 3); it is also very selective and free of interference from 10 other metal ions (Ba(2+) , Ca(2+) , Cd(2+) , Co(2+) , Cs(+) , Cu(2+) , K(+) , Li(+) , Ni(2+) , Pb(2+) ). The result suggests that the L-arginine-functionalized AuNRs can potentially serve as a rapid, sensitive, and easy-to-use colorimetric biosensor useful for determining Hg(2+) in food and environmental samples.

show abstract

Section: Introductionmentioning

confidence: 99%

Using L‐Arginine‐Functionalized Gold Nanorods for Visible Detection of Mercury(II) Ions

Guan

Wang

Gunasekaran

2015

Journal of Food Science

View full text Add to dashboard Cite

show abstract

“…Therefore, it’s of great significance for the quantitative monitoring of Hg 2+ in medicine and environment. Up to now, a number of analytical methods have been applied to the detection of Hg 2+ , for example, colorimetry ( Gao et al, 2014 ; Balasurya et al, 2020 ), atomic absorption spectrometry (AAS) ( Hsu et al, 2011 ), fluorescence spectrometry ( Fang et al, 2018 ; Mao et al, 2019 ), gas chromatography (GC) ( Miranda-Andrades et al, 2019 ), etc. However, these traditional analysis methods require large equipment, high cost, complex operation and sample pre-processing.…”

Section: Introductionmentioning

confidence: 99%

Vertically-Ordered Mesoporous Silica Films for Electrochemical Detection of Hg(II) Ion in Pharmaceuticals and Soil Samples

et al. 2022

View full text Add to dashboard Cite

Rapid and simple determination of mercury ion (Hg2+) in pharmaceuticals and soil samples is vital for human health and the environmental monitoring. Vertically-ordered mesoporous silica films (VMSF) supported by the indium tin oxide (ITO) electrode surface were prepared by electrochemically assisted self-assembly method and utilized for electrochemical detection of Hg2+. Owing to the negatively charged channel walls and ultrasmall pore diameter, VMSF displays obvious cationic selectivity and has highly electrostatic interaction for Hg2+, giving rise to the strong electrochemical signals. By recording the anodic stripping signals of adsorbed Hg2+ using differential pulse voltammetry, quantitative detection of Hg2+ was achieved with a wide linear range (0.2 μM–20 μM) and a low limit of detection (3 nM). Furthermore, considering the anti-fouling and anti-interference capacity of VMSF, the proposed VMSF/ITO sensor has been successfully applied to detect Hg2+ in pharmaceuticals and soil samples without tedious pretreatment processes of samples.

show abstract

“…erefore, the determination of Mercury ions is necessary in environmental monitoring and clinical analysis, and it is of great signi cance to improve the quality of human life and protect the Earth's environment. At present, mature methods for mercury-ion detection are as follows: spectrophotometry [4], inductively coupled plasma-mass spectrometry (ICP-MS) [5], atomic absorption/emission spectrometry (AAS/AES) [6], atomic uorescence spectrometry (AFS) [7], high-performance liquid chromatography (HPLC) [8], inductively coupled plasma atomic emission spectrometry (ICP-AES) [9], and uorescence probe detection [10]. Although these methods show excellent detection performance, most of them require expensive precision instruments, complex sample preparation processes, and skilled operators and cannot be conveniently used online or outdoors.…”

Section: Introductionmentioning

confidence: 99%

Rapid Determination of Mercury Ions in Environmental Water Based on an N-Rich Covalent Organic Framework Potential Sensor

Tian

Zhu

2022

International Journal of Chemical Engineering

View full text Add to dashboard Cite

In this article, an N-rich covalent organic framework (COFTFPB-TZT) was successfully synthesized using 4,4′,4′-(1,3,5-triazine-2,4,6-triyl) trianiline (TZT), and 4-[3,5-bis (4-formyl-phenyl) phenyl] benzaldehyde (TFPB). The as-prepared COFTFPB-TZT possesses irregular cotton wool patches with a large specific surface area. A novel selective electrode based on COFTFPB-TZT was used for the determination of Mercury ions. The abundance of N atoms in COFTFPB-TZT provides more coordination sites for Hg2+ adsorption, resulting in a change in the surface membrane potential of the electrode to selectively recognize Hg2+. Under optimal experimental conditions, the ion-selective electrode shows a good potential response to Hg2+, with a linear range of 1.0 × 10−9∼1.0 × 10−4, a Nernst response slope of 30.32 ± 0.2 mV/-PC at 25°C and a detection limit of 4.5 pM. At the same time, the mercury-ion electrode shows a fast response time of 10 s and good reproducibility and stability. The selectivity coefficients for Fe2+, Zn2+, As3+, Cr6+, Cu2+, Cr3+, Al3+, Pb2+, NH4+, Ag+, Ba2+, Mg2+, Na+, and K+ are found to be small, indicating no interference in the detection system. The proposed method can be successfully applied to the determination of Hg2+ in 3 typical environmental water samples, with a recovery rate of 98.6–101.8%. In comparison with the spectrophotometric method utilizing dithizone, the proposed method is simple and fast and holds great potential application prospects in environmental water quality monitoring and other fields.

show abstract

Gold-nanoparticle-based graphite furnace atomic absorption spectrometry amplification and magnetic separation method for sensitive detection of mercuric ions

Cited by 31 publications

References 20 publications

Using L‐Arginine‐Functionalized Gold Nanorods for Visible Detection of Mercury(II) Ions

Using L‐Arginine‐Functionalized Gold Nanorods for Visible Detection of Mercury(II) Ions

Vertically-Ordered Mesoporous Silica Films for Electrochemical Detection of Hg(II) Ion in Pharmaceuticals and Soil Samples

Rapid Determination of Mercury Ions in Environmental Water Based on an N-Rich Covalent Organic Framework Potential Sensor

Contact Info

Product

Resources

About