Gold nanorods for surface Plasmon resonance detection of mercury (II) in flow injection analysis

Khang Trieu; Emily C. Heider; Scott C. Brooks; Fernando Barbosa; Andres D. Campiglia

doi:10.1016/j.talanta.2014.04.028

Gold nanorods for surface Plasmon resonance detection of mercury (II) in flow injection analysis

Khang Trieu, Emily C. Heider, Scott C. Brooks, Fernando Barbosa, Andres D. Campiglia

Biogeochemical Dynamics

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15 Scopus citations

Abstract

This article investigates the flow injection analysis of mercury (II) ions in tap water samples via surface Plasmon resonance detection. Quantitative analysis of mercury (II) is based on the chemical interaction of metallic mercury with gold nanorods immobilized on a glass substrate. A new flow cell design is presented with the ability to accommodate the detecting substrate in the sample compartment of commercial spectrometers. Two alternatives are here considered for mercury (II) detection, namely stop-flow and continuous flow injection analysis modes. The best limit of detection (2.4 ng mL^-1) was obtained with the continuous flow injection analysis approach. The accurate determination of mercury (II) ions in samples of unknown composition is demonstrated with a fortified tap water sample.

Original language	English
Pages (from-to)	196-202
Number of pages	7
Journal	Talanta
Volume	128
DOIs	https://doi.org/10.1016/j.talanta.2014.04.028
State	Published - Oct 1 2014

Funding

This work was funded by U.S. Department of Energy ( DE-SC0004813 ).

Keywords

Flow injection analysis
Gold nanorods
Localized surface Plasmon resonance
Mercury
Sensors

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10.1016/j.talanta.2014.04.028

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title = "Gold nanorods for surface Plasmon resonance detection of mercury (II) in flow injection analysis",

abstract = "This article investigates the flow injection analysis of mercury (II) ions in tap water samples via surface Plasmon resonance detection. Quantitative analysis of mercury (II) is based on the chemical interaction of metallic mercury with gold nanorods immobilized on a glass substrate. A new flow cell design is presented with the ability to accommodate the detecting substrate in the sample compartment of commercial spectrometers. Two alternatives are here considered for mercury (II) detection, namely stop-flow and continuous flow injection analysis modes. The best limit of detection (2.4 ng mL-1) was obtained with the continuous flow injection analysis approach. The accurate determination of mercury (II) ions in samples of unknown composition is demonstrated with a fortified tap water sample.",

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AU - Trieu, Khang

AU - Heider, Emily C.

AU - Brooks, Scott C.

AU - Barbosa, Fernando

AU - Campiglia, Andres D.

PY - 2014/10/1

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N2 - This article investigates the flow injection analysis of mercury (II) ions in tap water samples via surface Plasmon resonance detection. Quantitative analysis of mercury (II) is based on the chemical interaction of metallic mercury with gold nanorods immobilized on a glass substrate. A new flow cell design is presented with the ability to accommodate the detecting substrate in the sample compartment of commercial spectrometers. Two alternatives are here considered for mercury (II) detection, namely stop-flow and continuous flow injection analysis modes. The best limit of detection (2.4 ng mL-1) was obtained with the continuous flow injection analysis approach. The accurate determination of mercury (II) ions in samples of unknown composition is demonstrated with a fortified tap water sample.

AB - This article investigates the flow injection analysis of mercury (II) ions in tap water samples via surface Plasmon resonance detection. Quantitative analysis of mercury (II) is based on the chemical interaction of metallic mercury with gold nanorods immobilized on a glass substrate. A new flow cell design is presented with the ability to accommodate the detecting substrate in the sample compartment of commercial spectrometers. Two alternatives are here considered for mercury (II) detection, namely stop-flow and continuous flow injection analysis modes. The best limit of detection (2.4 ng mL-1) was obtained with the continuous flow injection analysis approach. The accurate determination of mercury (II) ions in samples of unknown composition is demonstrated with a fortified tap water sample.

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KW - Gold nanorods

KW - Localized surface Plasmon resonance

KW - Mercury

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Gold nanorods for surface Plasmon resonance detection of mercury (II) in flow injection analysis

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