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
✍ Scribed by Daniele Fabbri; Ivano Vassura; Marco Lombardo; Claudio Trombini
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 505 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0268-2605
No coin nor oath required. For personal study only.
✦ Synopsis
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.