Speciation of organomercurials in biological and environmental samples by gas chromatography with microwave-induced plasma atomic emission detection

Cited by 38 publications

(5 citation statements)

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“…In addition, the detectors commonly employed tend to lack sensitivity and are not element speci®c. Greater sensitivity and element selective detection can be achieved through on-line coupling with atomic spectroscopic detectors such as MIP-AES, 31 ICP-MS 32,33 or AFS. 32,33 As an alternative approach to direct sample extraction, headspace sampling of methylmercury can be achieved using solid-phase microextraction (SPME).…”

Section: Introductionmentioning

confidence: 99%

Determination of methylmercury by solid-phase microextraction inductively coupled plasma mass spectrometry: a new sample introduction method for volatile metal species

Mester

Lam

Sturgeon

et al. 2000

J. Anal. At. Spectrom.

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Access and use of this website and the material on it are subject to the Terms and Conditions set forth at Determination of methylmercury by solid-phase microextraction inductively coupled plasma mass spectrometry: a new sample introduction method for volatile metal species Mester, Z.; Lam, J.; Sturgeon, R.; Pawliszyn, J.http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=fr L'accès à ce site Web et l'utilisation de son contenu sont assujettis aux conditions présentées dans le site LISEZ CES CONDITIONS ATTENTIVEMENT AVANT D'UTILISER CE SITE WEB. NRC Publications Record / Notice d'Archives des publications de CNRC:http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?action=rtdoc&an=8900155&lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?action=rtdoc&an=8900155&lang=fr READ THESE TERMS AND CONDITIONS CAREFULLY BEFORE USING THIS WEBSITE.http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en Vous avez des questions? Nous pouvons vous aider. Pour communiquer directement avec un auteur, consultez la première page de la revue dans laquelle son article a été publié afin de trouver ses coordonnées. Si vous n'arrivez pas à les repérer, communiquez avec nous à PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. Questions? Contact the NRC Publications Archive team atPublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. If you wish to email the authors directly, please see the first page of the publication for their contact information. NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://doi.org/10.1039/b000883oJournal of Analytical Atomic Spectrometry, 15, 7, pp. 837-842, 2000 Full PaperDetermination of methylmercury by solid-phase microextraction inductively coupled plasma mass spectrometry: a new sample introduction method for volatile metal species{ Direct coupling of solid-phase microextraction (SPME) with inductively coupled plasma mass spectrometry (ICP-MS) is described for methylmercury speciation. A thermal desorption interface, consisting of a heated, glass-lined splitless-type GC injector, was placed directly at the base of the torch to minimize the length of transfer line. This arrangement provides for fast desorption and high sample introduction ef®ciency. Direct liquid immersion and headspace extraction of methylmercury was studied, including the effect of temperature and time on the extraction ef®ciency. For clean solutions, immersion sampling SPME provided good sensitivity that was linear over two orders of magnitude whereas headspace sampling showed 15% lower sensitivity, but a linear range of more than three orders of magnitude. The d...

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Section: Introductionmentioning

confidence: 99%

Determination of methylmercury by solid-phase microextraction inductively coupled plasma mass spectrometry: a new sample introduction method for volatile metal species

Mester

Lam

Sturgeon

et al. 2000

J. Anal. At. Spectrom.

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“…In a few cases of capillary GC, MMC has been analyzed directly using a capillary column conditioned by injection of 1% solution of mer-cury(II) chloride or other mercury(II) salt [19][20][21][22][23][24]. These methods cannot avoid the constraints of low column efficiency, rapid deterioration of column performance, drastic reduction of column life and damage to the detector.…”

Section: Introductionmentioning

confidence: 99%

Direct GC determination of methylmercury chloride on HBr-methanol-treated capillary columns

1997

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SummaryGas chromatography with electron capture detection (GC-ECD) for the analysis of methylmercury chloride (MMC) using a packed column and a capillary column has been investigated. The columns were 2 % silicone OV-227 Uniport HP glass column and a DB-17 capillary column, each pretreated by about ten injections of HBrmethanol solution. MMC was separated as a sharp peak by the HBr-teated column and determined directly by ECD without derivatisation. The mass spectrum of MMC indicated that halide exchange from chloride to bromide proceeded during separation. The minimum detectable concentrations were approximately 5 ng mL -1 on the packed column, and 2 ng mL -1 on the capillary. Calibration curves showed good linearity between 5-200 ng mL -1 for the packed column, and between 2-200 ng mL -1 for the capillary. Relative standard deviations of peak areas were 0.95 % for the packed column and 0.43 % for the capillary at the level of 100 ng mL -1 in both cases. The column treatment technique was applicable to determination of methylmercury in fish samples.

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“…For mercury the AED was found to be much superior to the mass-selective detector with regard to both detection limit and precision [74]. Organomercury compounds in clams were also better determined with the AED than with the ECD, because of its selectivity for the metal and consequent lack of peak overlap with other sample components [78].…”

Section: Compound-independent Calibration For Metalsmentioning

confidence: 97%

Some unique properties of gas chromatography coupled with atomic-emission detection

Andersson

2002

Anal Bioanal Chem

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The atomic-emission detector in gas chromatography is enormously versatile in applications in analytical chemistry. Its unique properties of high selectivity for most elements and low limits of detection combine to make it the preferred detector for many analytical problems. In this review the stress is laid on the possibility of using it for compound-independent calibration, for determination of the empirical formula of an unknown analyte, for isotope-selective detection, and on derivatization to give AED-active derivatives with advantageous detection properties. Both metals and non-metals are considered and examples of the use of atomic emission detection in real-world analysis are discussed.

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Speciation of organomercurials in biological and environmental samples by gas chromatography with microwave-induced plasma atomic emission detection

Cited by 38 publications

References 26 publications

Determination of methylmercury by solid-phase microextraction inductively coupled plasma mass spectrometry: a new sample introduction method for volatile metal species

Determination of methylmercury by solid-phase microextraction inductively coupled plasma mass spectrometry: a new sample introduction method for volatile metal species

Direct GC determination of methylmercury chloride on HBr-methanol-treated capillary columns

Some unique properties of gas chromatography coupled with atomic-emission detection

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