Mercury speciation in biological samples

M. Aceto; A. M. Foglizzo; E. Mentasti; G. Sacchero; C. Sarzanini

doi:10.1080/03067319508027222

Mercury speciation in biological samples

M. Aceto, A. M. Foglizzo, E. Mentasti, G. Sacchero, C. Sarzanini

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

Abstract

An extraction method is proposed in order to evaluate mercury species in biological samples (e.g. fish, mushrooms). Sulphur-containing ligands have been considered and thiourea was chosen for the optimised extraction procedure according to the best recovery obtained (65.9%, 75.8%, 47.1% and 98.2% for CH₃Hg+, C₂H₅Hg⁺, C_AH₅Hg⁺and Hg²⁺respectively) and the chromatographic performance. Thiourea solutions added to biological samples enabled extraction of organomercury species; the influence of reaction time and recovery yields were evaluated. The proposed procedure, coupled with an on-line preconcentration step, allows to reduce contamination problems and to obtain detection limits at ng/g levels. The method has been evaluate with reference materials (BCR).

Lingua originale	Inglese
pagine (da-a)	1-13
Numero di pagine	13
Rivista	International Journal of Environmental Analytical Chemistry
Volume	60
Numero di pubblicazione	1
DOI	https://doi.org/10.1080/03067319508027222
Stato di pubblicazione	Pubblicato - 1 mag 1995
Pubblicato esternamente	Sì

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title = "Mercury speciation in biological samples",

abstract = "An extraction method is proposed in order to evaluate mercury species in biological samples (e.g. fish, mushrooms). Sulphur-containing ligands have been considered and thiourea was chosen for the optimised extraction procedure according to the best recovery obtained (65.9%, 75.8%, 47.1% and 98.2% for CH3Hg+, C2H5Hg+, CAH5Hg+and Hg2+respectively) and the chromatographic performance. Thiourea solutions added to biological samples enabled extraction of organomercury species; the influence of reaction time and recovery yields were evaluated. The proposed procedure, coupled with an on-line preconcentration step, allows to reduce contamination problems and to obtain detection limits at ng/g levels. The method has been evaluate with reference materials (BCR).",

keywords = "HPLC-CV-AAS, Mercury speciation, extraction procedure, organomercury",

author = "M. Aceto and Foglizzo, {A. M.} and E. Mentasti and G. Sacchero and C. Sarzanini",

note = "Funding Information: Financial support from Minister0 dell{\textquoteright}Universit8 e della Ricerca Scientifica e Tecnologica (MURST, Rome) and from the Italian National Research Council (CNR, Rome), is gratefully acknowledged.",

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month = may,

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doi = "10.1080/03067319508027222",

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AU - Aceto, M.

AU - Foglizzo, A. M.

AU - Mentasti, E.

AU - Sacchero, G.

AU - Sarzanini, C.

N1 - Funding Information: Financial support from Minister0 dell’Universit8 e della Ricerca Scientifica e Tecnologica (MURST, Rome) and from the Italian National Research Council (CNR, Rome), is gratefully acknowledged.

PY - 1995/5/1

Y1 - 1995/5/1

N2 - An extraction method is proposed in order to evaluate mercury species in biological samples (e.g. fish, mushrooms). Sulphur-containing ligands have been considered and thiourea was chosen for the optimised extraction procedure according to the best recovery obtained (65.9%, 75.8%, 47.1% and 98.2% for CH3Hg+, C2H5Hg+, CAH5Hg+and Hg2+respectively) and the chromatographic performance. Thiourea solutions added to biological samples enabled extraction of organomercury species; the influence of reaction time and recovery yields were evaluated. The proposed procedure, coupled with an on-line preconcentration step, allows to reduce contamination problems and to obtain detection limits at ng/g levels. The method has been evaluate with reference materials (BCR).

AB - An extraction method is proposed in order to evaluate mercury species in biological samples (e.g. fish, mushrooms). Sulphur-containing ligands have been considered and thiourea was chosen for the optimised extraction procedure according to the best recovery obtained (65.9%, 75.8%, 47.1% and 98.2% for CH3Hg+, C2H5Hg+, CAH5Hg+and Hg2+respectively) and the chromatographic performance. Thiourea solutions added to biological samples enabled extraction of organomercury species; the influence of reaction time and recovery yields were evaluated. The proposed procedure, coupled with an on-line preconcentration step, allows to reduce contamination problems and to obtain detection limits at ng/g levels. The method has been evaluate with reference materials (BCR).

KW - HPLC-CV-AAS

KW - Mercury speciation

KW - extraction procedure

KW - organomercury

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JO - International Journal of Environmental Analytical Chemistry

JF - International Journal of Environmental Analytical Chemistry

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ER -

Mercury speciation in biological samples

Abstract

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