DETERMINATION OF METHYLMERCURY IN WATERS USING SODIUM TETRAPHENYLBORATE DERIVATIZATION SOLVENT-EXTRACTION AND GAS-CHROMATOGRAPHY ION-TRAP MASS-SPECTROMETRY

Authors
HU GL WANG XR WANG YR XI C LI J
Citation
Gl. Hu et al., DETERMINATION OF METHYLMERCURY IN WATERS USING SODIUM TETRAPHENYLBORATE DERIVATIZATION SOLVENT-EXTRACTION AND GAS-CHROMATOGRAPHY ION-TRAP MASS-SPECTROMETRY, Analytical letters, 30(14), 1997, pp. 2579-2594
Citations number
23
Categorie Soggetti
Chemistry Analytical
Journal title
Analytical letters → ACNP
ISSN journal
00032719
Volume
30
Issue
14
Year of publication
1997
Pages
2579 - 2594
Database
ISI
SICI code
0003-2719(1997)30:14<2579:DOMIWU>2.0.ZU;2-W
Abstract
An analytical approach involving aqueous-phase derivatization followed by gas chromatography/ion trap mass spectrometry (GC/ITMS) for the de termination of methylmercury in waters is described. The aqueous-phase derivatization is based on the formation of a more hydrophobic compou nd between MeHg+ and BPh4-, i.e., MeHgPh, which is extractable into di chloromethane. The detection limit of the method for MeHg is 1 ng/mL f or Hg when 100 ml water was analyzed. Recoveries from standard additio n to tap water, lake water are 96 +/- 8 % and 92 +/- 8 %, respectively .