Health & Environmental Research Online (HERO)


Print Feedback Export to File
7935640 
Journal Article 
Determination of mercury in geritamin, fish oil and essential oils by electrothermal atomic absorption spectrometry 
Bozhanov, S; Arpadjan, S; Alexandrov, S 
2007 
Yes 
Comptes Rendus de l'Académie Bulgare des Sciences
ISSN: 1310–1331
EISSN: 2367–5535 
60 
9 
979-982 
English 
WOS:000250215200009 
This paper describes a rapid procedure for determination of mercury in geritamin, fish oil, almond, apricot, grape seed, lavender and soya oils by electrothermal atomic absorption spectrometry. The chemical modifier was prepared as 2.5% solution of N,N-Hexamethylene dithiocarbamic acid, hexamethylene ammonium salt in isobutyl methyl keton. This solution was used as diluent for sample and standards preparation. The diluted samples were directly injected into the graphite atomiser. This simple and fast procedure prevents losses of Hg during sample preparation. In addition a thermal stabilization of Hg up to 400 °C was achieved. A low temperature atomization of Hg at 800 °C allows measuring the integrated absorbance signal for mercury at relative low background values prior to thermal decomposition of the matrix. The method shows good recoveries and intra- and inter-day relative standard deviations were in the range of 3-14%. 
mercury; geritamin; fish oil; essential oils; ETAAS