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Open Marien Archief

Het Open Marien Archief van België (OMA) biedt vrije toegang tot de digitale publicaties over de Vlaamse kust en het Belgisch deel van de Noordzee, en alle andere mariene, estuariene en kustgebonden publicaties van Belgische auteurs en wetenschappers en van buitenlandse wetenschappers geaffilieerd aan een Belgische instelling.

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Determination of methylmercury in biological samples by semiautomated headspace analysis
Decadt, G.; Baeyens, W.F.J.; Bradley, D.; Goeyens, L. (1985). Determination of methylmercury in biological samples by semiautomated headspace analysis. Anal. Chem. 57: 2788-2791
In: Analytical chemistry: Washington. ISSN 0003-2700, meer
Peer reviewed article

Ook gepubliceerd als
  • Decadt, G.; Baeyens, W.F.J.; Bradley, D.; Goeyens, L. (1986). Determination of methylmercury in biological samples by semiautomated headspace analysis, in: (1986). IZWO Coll. Rep. 16(1986). IZWO Collected Reprints, 16: pp. chapter 4, meer

Beschikbaar in Auteurs 

Trefwoorden
    Analytische technieken; Chemische analyse; Mercury compounds; Marien

Auteurs  Top 
  • Decadt, G.
  • Baeyens, W.F.J., meer
  • Bradley, D.
  • Goeyens, L., meer

Abstract
    Gas-liquid distribution coefficients of methylmercury halides dissolved in water or benzene have been assessed by using a headspace injection system coupled to a gas chromatograph-microwave-induced plasma system. Vapor concentrations decreased in the following order: CH3HgI > CH3HgBr > CH3HgCl. To transform all methylmercury iodide, iodoacetic acid (IAc) is used as the liberating agent. Methylmercury iodide degradation is prevented by the addition of sodium thiosulfate (0.05 M). The results obtained with internal standard addition are not influenced by other volatile compounds including other mercury compounds. The method has been applied to a series of biological samples. The detection limit of methylmercury in biological samples is 1.5 ng/mL of homogenate.
    Contrary to direct on-column injection, no column performance degradation was observed when using a headspace sampler after more than 50 analyses.

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