Species specific isotope dilution calibration for determination of mercury species by gas chromatography coupled to inductively coupled plasma- or furnace atomisation plasma ionisation-mass spectrometry

Abstract

Access and use of this website and the material on it are subject to the Terms and Conditions set forth at Species specific isotope dilution calibration for determination of mercury species by gas chromatography coupled to inductively coupled plasma-or furnace atomisation plasma ionisation-mass spectrometry Snell, James P.; Stewart, Ian I.; Sturgeon, Ralph E.; Frech, Wolfgang 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=8896562&lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?action=rtdoc&an=8896562&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/b007130gJournal of Analytical Atomic Spectrometry, 15, 12, pp. 1540Spectrometry, 15, 12, pp. -1545Spectrometry, 15, 12, pp. , 2000 Full PaperSpecies speci®c isotope dilution calibration for determination of mercury species by gas chromatography coupled to inductively coupled plasma-or furnace atomisation plasma ionisation-mass spectrometry were then used for species speci®c isotope dilution calibration and method assurance tests for mercury species determination. An interface was built to couple a gas chromatograph (GC) to an inductively coupled plasma mass spectrometer (ICP-MS) that resulted in rapid and ef®cient transfer of organic mercury compounds eluted from natural gas condensates. Oxygen, introduced to the plasma auxiliary gas, reduced matrix interferences and improved sensitivity by a factor of two. The GC-ICP-MS method with species speci®c isotope dilution calibration gave recovery values of 97.7¡2.0, 104.1¡0.7 and 106.6¡2.1% for (CH 3 ) 2 Hg, CH 3 HgCl and HgCl 2 , respectively, in natural...

Determination of methylmercury in fish tissues by isotope dilution SPME-GC-ICP-MS

“…However, despite the advantages offered by species specific isotope dilution methodology, few applications of ID for the determination of MMHg have been reported. 23,24,[54][55][56][57][58][59][60] The objective of this study was to take advantage of the high accuracy and precision offered by ID in combination with the ease of use, simple and efficient sampling of SPME coupled with the superior separation and detection powers of GC-ICP-MS for MMHg determination in the certification of new CRM Dogfish Liver, DOLT-3. A reverse spike isotope dilution approach was performed to quantify the concentration of enriched MM 198 Hg spike synthesized in house.…”

High yield synthesis and characterization of isotopically enriched monoethylmercury chloride (C2H5201HgCl)

“…Previously, the more toxic diethylmercury had been used to synthesize the mono-ethylmercury chloride. Qvarnström et al 20 followed the Snell et al 21 protocol, wherein the synthesis was based on ethylation of 199 Hg-enriched mercuric chloride with Grignard reagent. A mass of 199 HgO was dissolved in concentrated HCl to convert the oxide to mercuric chloride.…”

High‐yield synthesis of milligram amounts of isotopically enriched methylmercury (CH3198HgCl)

“…Snell et al 17 have reported the use of enriched 198 Hg for the preparation of dimethylmercury, methylmercury chloride and mercuric chloride standards, used for the determination of mercury species in natural-gas condensates and other organic samples by gas chromatography (GC)-inductively coupled plasma (ICP) MS and GC-high-field asymmetric waveform ion mobility spectrometry-MS. The synthesis procedure entailed the following: enriched mercury was dissolved in nitric acid in a borosilicate glass tube and the acid was evaporated to near dryness; concentrated hydrochloric acid was added, and the solution again heated until dry.…”