In this work, a methodology for the determination of total mercury in human hair is presented. This methodology is an improvement of a previous technique which has been reported by Chen et al. in 2002. This previous work was based on an acid digestion, C, cartridge clean-up, a 2,3-dimercaptopropane-1-sulfonate complexing agent, solid phase extraction and a graphite furnace atomic absorption spectrophotometric determination. In the present study, the complexing agent has been replaced by the ammonium pyrrolidine dithiocarbamate followed by a liquid-liquid extraction and the clean-up has been avoided in order to obtain a less expensive and less time consuming methodology.
Improvements in the total mercury extraction from human hair and Graphite-Furnace Atomic Absorption Spectrophotometer (GFAAS) determination / Montuori, Paolo; Pagano, A; Jover, E; Bayona, Jm; Triassi, Maria. - In: JOURNAL OF PREVENTIVE MEDICINE AND HYGIENE. - ISSN 1121-2233. - STAMPA. - 48:2(2007), pp. 43-46.
Improvements in the total mercury extraction from human hair and Graphite-Furnace Atomic Absorption Spectrophotometer (GFAAS) determination.
MONTUORI, PAOLO;TRIASSI, MARIA
2007
Abstract
In this work, a methodology for the determination of total mercury in human hair is presented. This methodology is an improvement of a previous technique which has been reported by Chen et al. in 2002. This previous work was based on an acid digestion, C, cartridge clean-up, a 2,3-dimercaptopropane-1-sulfonate complexing agent, solid phase extraction and a graphite furnace atomic absorption spectrophotometric determination. In the present study, the complexing agent has been replaced by the ammonium pyrrolidine dithiocarbamate followed by a liquid-liquid extraction and the clean-up has been avoided in order to obtain a less expensive and less time consuming methodology.File | Dimensione | Formato | |
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