Ion chromatographic separation and on-line cold vapour atomic absorption spectrometric determination of methylmercury, ethylmercury and inorganic mercury

Corrado Sarzanini; Giovanni Sacchero; Maurizio Aceto; Ornella Abollino; Edoardo Mentasti

doi:10.1016/0003-2670(94)85070-4

Ion chromatographic separation and on-line cold vapour atomic absorption spectrometric determination of methylmercury, ethylmercury and inorganic mercury

Corrado Sarzanini, Giovanni Sacchero, Maurizio Aceto, Ornella Abollino, Edoardo Mentasti

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

Abstract

The ion chromatographic separation of methylmercury, ethylmercury and inorganic mercury as cysteine complexes was investigated. The chromatographic apparatus was interfaced with cold vapour atomic absorption spectrometry for detection using an on-line continuous flow cell coupled with a reduction system (sodium tetrahydroborate). The influence of the composition of the eluent (pH, ionic strength, cysteine concentration) and stripping gas flow-rate was investigated. The method was optimized by coupling an on-line preconcentration step. The detection limits, evaluated on 100.0-ml samples, were 2, 10 and 4 ng for Hg, CH₃Hg and C₂H₅Hg, respectively. The method was applied to synthetic mixtures and natural samples (tap water) and furnished satisfactory results.

Lingua originale	Inglese
pagine (da-a)	661-667
Numero di pagine	7
Rivista	Analytica Chimica Acta
Volume	284
Numero di pubblicazione	3
DOI	https://doi.org/10.1016/0003-2670(94)85070-4
Stato di pubblicazione	Pubblicato - 10 gen 1994
Pubblicato esternamente	Sì

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10.1016/0003-2670(94)85070-4

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title = "Ion chromatographic separation and on-line cold vapour atomic absorption spectrometric determination of methylmercury, ethylmercury and inorganic mercury",

abstract = "The ion chromatographic separation of methylmercury, ethylmercury and inorganic mercury as cysteine complexes was investigated. The chromatographic apparatus was interfaced with cold vapour atomic absorption spectrometry for detection using an on-line continuous flow cell coupled with a reduction system (sodium tetrahydroborate). The influence of the composition of the eluent (pH, ionic strength, cysteine concentration) and stripping gas flow-rate was investigated. The method was optimized by coupling an on-line preconcentration step. The detection limits, evaluated on 100.0-ml samples, were 2, 10 and 4 ng for Hg, CH3Hg and C2H5Hg, respectively. The method was applied to synthetic mixtures and natural samples (tap water) and furnished satisfactory results.",

keywords = "Atomic absorption spectrometry, Ethylmercury, Ion chromatography, Mercury, Methylmercury, Preconcentration, Speciation, Waters",

author = "Corrado Sarzanini and Giovanni Sacchero and Maurizio Aceto and Ornella Abollino and Edoardo Mentasti",

note = "Funding Information: Financial supportf rom the Ministry of University and Scientific and Technological Research (MURST, Rome) and from the CNR (Rome) is gratefullya cknowledged.",

year = "1994",

month = jan,

day = "10",

doi = "10.1016/0003-2670(94)85070-4",

language = "English",

volume = "284",

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journal = "Analytica Chimica Acta",

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Ion chromatographic separation and on-line cold vapour atomic absorption spectrometric determination of methylmercury, ethylmercury and inorganic mercury. / Sarzanini, Corrado; Sacchero, Giovanni; Aceto, Maurizio et al.
In: Analytica Chimica Acta, Vol. 284, N. 3, 10.01.1994, pag. 661-667.

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

TY - JOUR

T1 - Ion chromatographic separation and on-line cold vapour atomic absorption spectrometric determination of methylmercury, ethylmercury and inorganic mercury

AU - Sarzanini, Corrado

AU - Sacchero, Giovanni

AU - Aceto, Maurizio

AU - Abollino, Ornella

AU - Mentasti, Edoardo

N1 - Funding Information: Financial supportf rom the Ministry of University and Scientific and Technological Research (MURST, Rome) and from the CNR (Rome) is gratefullya cknowledged.

PY - 1994/1/10

Y1 - 1994/1/10

N2 - The ion chromatographic separation of methylmercury, ethylmercury and inorganic mercury as cysteine complexes was investigated. The chromatographic apparatus was interfaced with cold vapour atomic absorption spectrometry for detection using an on-line continuous flow cell coupled with a reduction system (sodium tetrahydroborate). The influence of the composition of the eluent (pH, ionic strength, cysteine concentration) and stripping gas flow-rate was investigated. The method was optimized by coupling an on-line preconcentration step. The detection limits, evaluated on 100.0-ml samples, were 2, 10 and 4 ng for Hg, CH3Hg and C2H5Hg, respectively. The method was applied to synthetic mixtures and natural samples (tap water) and furnished satisfactory results.

AB - The ion chromatographic separation of methylmercury, ethylmercury and inorganic mercury as cysteine complexes was investigated. The chromatographic apparatus was interfaced with cold vapour atomic absorption spectrometry for detection using an on-line continuous flow cell coupled with a reduction system (sodium tetrahydroborate). The influence of the composition of the eluent (pH, ionic strength, cysteine concentration) and stripping gas flow-rate was investigated. The method was optimized by coupling an on-line preconcentration step. The detection limits, evaluated on 100.0-ml samples, were 2, 10 and 4 ng for Hg, CH3Hg and C2H5Hg, respectively. The method was applied to synthetic mixtures and natural samples (tap water) and furnished satisfactory results.

KW - Atomic absorption spectrometry

KW - Ethylmercury

KW - Ion chromatography

KW - Mercury

KW - Methylmercury

KW - Preconcentration

KW - Speciation

KW - Waters

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U2 - 10.1016/0003-2670(94)85070-4

DO - 10.1016/0003-2670(94)85070-4

M3 - Article

SN - 0003-2670

VL - 284

SP - 661

EP - 667

JO - Analytica Chimica Acta

JF - Analytica Chimica Acta

IS - 3

ER -

Ion chromatographic separation and on-line cold vapour atomic absorption spectrometric determination of methylmercury, ethylmercury and inorganic mercury

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