Critical review of analytical methods for determination of inorganic mercury and methylmercury compounds

Puk, Richard; Weber, James H.

doi:10.1002/aoc.590080404

Cited by 80 publications

(27 citation statements)

References 53 publications

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“…wave atomic absorption spectroscopy (AAS), gas chromatography-mass spectroscopy (GC-MS), inductively coupled plasma mass spectroscopy (ICP-MS), and highperformance liquid chromatography (HPLC) (Puk and Weber 1994;Vallant et al 2007;Barin et al 2014;Han et al 2006). However, these techniques are highly expensive, and require sophisticated operating facilities, complex sample treatments and skilled personnel, and thus are not suitable for field deployment.…”

Section: Introductionmentioning

confidence: 99%

Dual mechanism-based sensing of mercury using unmodified, heteroepitaxially synthesized silver nanoparticles

et al. 2017

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Mercury and its compounds are widely distributed in the environment and have a significant negative impact on human health. In this paper, we report the development of a rapid and facile method for the detection of mercury ions (Hg 2? ) using heteroepitaxially synthesized unmodified silver nanoparticle-based smart probes using UV-Vis spectrophotometer and also through the naked eye by means of a paper-based sensor strip. The silver nanoparticles were prepared by heteroepitaxial growth method using gold seed nanoparticle of *2.4 nm size as the template. The silver is grown on the seed particles by reducing the silver-ammonia complex using glucose, which resulted in Glu-AgNPs having an average size of 14.65 ± 3.53 nm. The sensing of mercury ions was carried out in aqueous solution and the reaction response was monitored by UV-Vis spectrophotometer. The interaction of Hg 2? with Glu-AgNPs resulted in a significant drop in the absorbance at 402 nm along with a prominent color change (from bright yellow to colorless) and wavelength shift (blue shift). The limit of detection (LOD) of this assay was found to be 100 nM (i.e., 20 ppb) with a good linearity in the concentration range of 100-10 mM. To further ease the detection process and make it field deployable, we attempted to develop a paper-based sensor strip by immobilizing Glu-AgNPs on a paper strip. Upon interaction with mercury solution of varying concentrations, the decoloration of the spots could be observed easily through naked eyes, with the limit of detection under sub-optical conditions being 1 lM.

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Section: Introductionmentioning

confidence: 99%

Dual mechanism-based sensing of mercury using unmodified, heteroepitaxially synthesized silver nanoparticles

et al. 2017

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“…On the other hand, the high affinity of mercury and organomercury compounds for sulfhydryl groups (4) is responsible of the toxicological behavior of this element which is one of the most studied heavy metals (5)(6)(7).…”

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confidence: 99%

Application of Mercury Cold Vapor Atomic Fluorescence Spectrometry to the Characterization of Mercury-Accessible −SH Groups in Native Proteins

Bramanti¹,

D’Ulivo²,

Lampugnani³

et al. 1999

Analytical Biochemistry

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“…The heterogeneous reaction mixture is efficiently stirred for 1 h at room temperature. After extraction with CH2C12 (2 X 5 ml), the collected organic phases are dried over Na,SO, and 1 is purified by flash chromatography on silica gel using cyclohexane-ether (2) To a solution of CH3HgCl (OSOg, 2mmol) and NaCl (1.46g, 25mmol) in water (901111) are added 2 M NaOH (101111) and a solution of phenylacetylene (0.25 g, 2.5 mmol) in CH2C12 (2 ml). The heterogeneous reaction mixture is efficiently stirred for 1 h at room temperature.…”

Section: Di(phenylethyny1)mercury (1)mentioning

confidence: 99%

A new procedure for the speciation of mercury in water based on the transformation of mercury (II) and methylmercury (II) into stable acetylides followed by HPLC analysis

Fabbri

Vassura

Lombardo

et al. 1995

Applied Organom Chemis

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Conversion of mercury(I1) and methylmercury(I1)species dissolved in water into di(pheny1-ethyny1)mercury and methyl(phenylethyny1) mercury takes place in satisfactory yield under alkaline conditions by stirring the aqueous solution with phenylacetylene at room temperature. Mercury speciation is simply obtained by HPLC analysis of the two organometallic species. The presence of heavy metals such as copper(II), zinc-(JI), cadmium(I1) and lead(11) in concentrations 10 000 times higher than mercury is tolerated, while little interference is displayed by humic acids and cysteine. Seawater samples can also be analysed following a properly adapted procedure.

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Critical review of analytical methods for determination of inorganic mercury and methylmercury compounds

Cited by 80 publications

References 53 publications

Dual mechanism-based sensing of mercury using unmodified, heteroepitaxially synthesized silver nanoparticles

Dual mechanism-based sensing of mercury using unmodified, heteroepitaxially synthesized silver nanoparticles

Application of Mercury Cold Vapor Atomic Fluorescence Spectrometry to the Characterization of Mercury-Accessible −SH Groups in Native Proteins

A new procedure for the speciation of mercury in water based on the transformation of mercury (II) and methylmercury (II) into stable acetylides followed by HPLC analysis

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