On-line coupling of flow injection displacement sorption preconcentration to high-performance liquid chromatography for speciation analysis of mercury in seafood

Dong, Liming; Yan, Xiu‐Ping; Li, Yan; Jiang, Yan; Wang, Shan‐Wei; Jiang, Dong-Qing

doi:10.1016/j.chroma.2004.02.070

Cited by 72 publications

(27 citation statements)

References 25 publications

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“…Pyrrolidinedithiocarbamate [14,17] and dithizone [18] modified-SPE cartridge were reported to pre-concentrate mercury species. In the elution procedure, pure organic solvents such as methanol were used as the eluent for desorption of the hydrophobic mercuric complex from the SPE column.…”

Section: Selection Of Eluentmentioning

confidence: 99%

“…Moreover, the ethylation-based method cannot be used for ethylmercury determination. In recent years, other pre-concentration methods were reported including solid phase micro-extraction [3][4][5], liquid phase micro-extraction [6][7][8], cloud point extraction [9,10] and solid phase extraction (SPE) [11][12][13][14][15][16][17][18][19]. For solid phase micro-extraction, derivatization procedure such as hyride, ethylation or phenylation derivatization is often necessary to transform inoganic mercury (IHg) and organomercurials into their volatile species.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dithizone-functionalized solid phase extraction–displacement elution-high performance liquid chromatography–inductively coupled plasma mass spectrometry for mercury speciation in water samples

Yin¹,

Ming²,

Peng³

et al. 2010

Talanta

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Section: Selection Of Eluentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dithizone-functionalized solid phase extraction–displacement elution-high performance liquid chromatography–inductively coupled plasma mass spectrometry for mercury speciation in water samples

Yin¹,

Ming²,

Peng³

et al. 2010

Talanta

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“…Thus, various methods for analyzing Hg(II) and its analogs have been developed in the past. Some examples of these methods are zeeman atomic absorption spectrometry [7], high performance chromatography with UV detection method [8], and flow injection coupled to inductively coupled plasma mass spectrometry [2]. The HPLC-fluorescence spectrometry method [9] and other methods [10,11] are particularly very sensitive.…”

Section: Introductionmentioning

confidence: 99%

Measuring mercury ion concentration with a carbon nano tube paste electrode using the cyclic voltammetry method

Kim

et al. 2005

J Appl Electrochem

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A simply prepared carbon nano tube paste electrode (CNTPE) was utilized for monitoring mercury ion concentration using the cyclic voltammetry (CV) method and the square wave anodic stripping voltammetric (SWASV) method. The CNTPE was compared with various conventional electrodes. The CNTPE method was applied to determine the concentration of trace levels of Hg(II) in several water samples, which yielded a relative error of 0.6% with a concentration of 0.20 mg L )1 Hg(II). It was deposited at )0.5 V (vs Ag/AgCl), which was subsequently reduced to +0.20 V to strip it on the CNTPE. The optimal experimental conditions for the analysis were found to be as follows: pH value of 4 for the medium; deposition potential of )0.5 V; deposition time of 210 s; SW frequency of 40 Hz; SW amplitude of 100 mV, and step potential of 25 mV. Given these optimum conditions, a linear range was observed within the concentrations of 1.0-25.0 lg L )1 and 40.0-200.0 lg L )1 . The detection limit was found to be 0.42 lg L )1 .

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“…Mercury is toxic, bio-accumulative and persistent in the environment and its behaviour and transport are dependent on its chemical forms (Dong et al, 2004). Determinations of total or inorganic mercury do not provide adequate information about its impact on the environment.…”

Section: Introductionmentioning

confidence: 99%

Determination of Organic Mercury in Biota, Plants and Contaminated Sediments Using a Thermal Atomic Absorption Spectrometry Technique

Válega

Abreu

Pato

et al. 2006

Water Air Soil Pollut

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A simple, rapid procedure for the determination of organic mercury in sediments, plants and fish tissues has been developed and validated. Extraction and separation of organic mercury compounds from the sample matrix was achieved by an established procedure based on an acid leaching of the sample (H 2 SO 4 /KBr/CuSO 4 ), followed by extraction of the organic mercury halide with toluene and back-extraction with an aqueous solution of thiosulphate. Detection and quantification of mercury, in the liquid extracts, was made by atomic absorption spectrometry (AAS), following thermal decomposition of the sample. The method was evaluated using Certified Reference Material (CRM) BCR 463 (tuna fish), BCR 580 (estuarine sediment), IAEA-140TM (sea plant homogenate) and NRCC TORT-2 (lobster hepathopancreas). The recovery factors for organic mercury in all tested CRM were between 81-107%. The precision of the method has relative standard deviations of less than 10% for sediments and fish tissues and of less than 16% for plant material. The method was successfully applied to natural samples of sediments, plants, macroalgae and fish tissues collected from an estuarine ecosystem and could, therefore, be used for routine analyses.

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On-line coupling of flow injection displacement sorption preconcentration to high-performance liquid chromatography for speciation analysis of mercury in seafood

Cited by 72 publications

References 25 publications

Dithizone-functionalized solid phase extraction–displacement elution-high performance liquid chromatography–inductively coupled plasma mass spectrometry for mercury speciation in water samples

Dithizone-functionalized solid phase extraction–displacement elution-high performance liquid chromatography–inductively coupled plasma mass spectrometry for mercury speciation in water samples

Measuring mercury ion concentration with a carbon nano tube paste electrode using the cyclic voltammetry method

Determination of Organic Mercury in Biota, Plants and Contaminated Sediments Using a Thermal Atomic Absorption Spectrometry Technique

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