Ultra-trace determination of iodine in sediments and biological material using UV photochemical generation-inductively coupled plasma mass spectrometry

Grinberg, Patrícia; Sturgeon, Ralph E.

doi:10.1016/j.sab.2009.01.013

Cited by 63 publications

(47 citation statements)

References 43 publications

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“…PVG has recently proven to be not only an interesting laboratory c uriosity, but a promising alternative to CVG for the practical determination of transition and noble elements as well as non-metals [12,[14][15][16]. As this is the first attempt at PVG of iron, it was necessary to undertake a full investigation of all physico-chemical parameters relating to generation and detection of the volatile species.…”

Section: Resultsmentioning

confidence: 99%

High-Yield UV-Photochemical Vapor Generation of Iron for Sample Introduction with Inductively Coupled Plasma Optical Emission Spectrometry

et al. 2010

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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 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. High-yield UV-photochemical vapor generation of iron for sample introduction with ICP-OES 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/10.1021/ac100059bAnalytical Chemistry, 82, 7, pp. 2996Chemistry, 82, 7, pp. -3001, 2010 ABSTRACTA novel approach to the generation of volatile iron compounds (likely the pentacarbonyl) with high efficiency is described wherein solutions containing either Fe 2+ or Fe 3+ and low molecular weight organic acids such as formic, acetic or propionic are exposed to a UVsource. An optimum generation efficiency of 60 ± 2 % was achieved in 50 % formic acid at pH 2.5 with an irradiation time of 250 s by use of a 17 W low pressure mercury grid lamp. Compared to conventional solution nebulization, sensitivity and limit of detection were improved 80-and 100-fold, respectively, yielding 1620 cps per ng/ml and 0.025 ng/ml at the 238.204 nm Fe II emission line. A precision of 0.75 % RSD was achieved at

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Section: Resultsmentioning

confidence: 99%

High-Yield UV-Photochemical Vapor Generation of Iron for Sample Introduction with Inductively Coupled Plasma Optical Emission Spectrometry

et al. 2010

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“…Figure 1 provides a schematic of the experimental system. Secondary PVG systems that were also examined for performance included a combined UV spray chamber 29 successfully used for PVG of iodine 23,24 and a 15 W germicidal lamp wound with 2 m of thin wall Teflon tubing, as earlier described for use with mercury vapor generation. 30 The latter was connected to the thin-film GLS.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

“…However, recent work with photochemical vapor generation (PVG) 16,18,22 highlights promising applications for this purpose. Although iodine was readily amenable to PVG, generating methyl iodide upon irradiation of a dilute solution of acetic acid to yield an analyte introduction efficiency of 94% (40-fold enhancement in sensitivity), 23,24 bromine proved intractable under all experimental conditions investigated.Recently, Qin et al reported on use of a high efficiency flowthrough UV reactor that has been demonstrated suitable for PVG of mercury, 25 and more recently for Sn, 26 as well as providing a relatively thin-film of sample for irradiation of highly UV-absorbing gasoline to enable efficient reduction of mercury in this matrix. 27 It has been postulated 22 that efficient PVG of bromine may be possible if the sample can be irradiated with intense, deep UV radiation (185 nm); this flow-through lamp provides such access and was used herein to evaluate the feasibility of PVG of bromine.…”

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confidence: 99%

Detection of Bromine by ICP-oa-ToF-MS Following Photochemical Vapor Generation

Sturgeon

2015

Anal. Chem.

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/npsi/ctrl?action=rtdoc&an=21275830&lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?action=rtdoc&an=21275830&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/10.1021/ac504747aAnalytical Chemistry, 87, 5, pp. 3072-3079, 2015-02-04 Detection of Bromine by ICP-oa-ToF-MS Following Photochemical Vapor Generation Ralph E. Sturgeon* National Research Council of Canada, Measurement Science and Standards, Ottawa, Ontario K1A 0R6, Canada ABSTRACT: A unique flow-through photochemical reactor is utilized for the generation of volatile methyl bromide from aqueous solutions of bromide and bromate ions in a medium of 2% acetic acid containing 3000 μg/mL NH 4 Cl. The volatile product is transported to a thin-film gas−liquid phase separator and directed to an inductively coupled plasma (ICP) tine-offlight mass spectrometer for detection and quantitation using either of the 79 Br or 81 Br isotopes. Utilizing a sample flow rate of 3.3 mL/min and a 13 s irradiation time, a detection limit of 0.14 ng/mL is achieved, yielding a 17-fold enhancement over conventional solution nebulization. The estimated generation efficiency of 95% provides for a significant increase in analyte transport efficiency to the ICP. Precision of replicate measurement is 2.5% (RSD) at 20 ng/mL. The methodology was validated by successful determination of bromine in reference materials, including IRMM (BCR-611) low level bromide in groundwater, NIST SRM 1568b Rice Flour, and SRM 1632 bituminous coal.O nly recently has bromine been identified as an essential trace element, important for the development of collagen in mammals. 1 Current major interest in this element arises from its widespread usage in industrial materials, including fire retardants, agricultural pesticides and pharmaceuticals. Treatment of groundwater by ozonolysis 2 to ensure potability raises concerns over production of bromate disinfection byproducts which...

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“…Guo et al [41] first introduced PVG in 2003, and applications of this new sample introduction quickly expanded [42,43]. A wide range of elements can be photochemically derivatized to volatile species, such as Hg [44,45], Ni [46,47], Se [43], Co [48,49], Fe [50], and I [51,52]. A typical schematic of PVG system is shown in Figure 2.…”

Section: Photochemical Vapor Generation Systemsmentioning

confidence: 99%

Application of chemical vapor generation in ICP-MS: A review

2013

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Chemical vapor generation (CVG) is an important sample introduction technique, and is widely used for atomic spectrometry for its enhanced sensitivity and selectivity. In the past 30 years, inductively coupled plasma mass spectrometry (ICP-MS) has become a widely used and the most sensitive instrument for (ultra-)trace element determination and elemental speciation. A review of applications of this state-of-the-art coupling of CVG and ICP-MS is presented. Discussion is focused on its applications for both element determination and speciation, including hydride generation, cold vapor generation, photochemical vapor generation, alkylation, and electrochemical vapor generation. In addition, recent studies undertaken isotope dilution calibration in CVG-ICP-MS for achieving improved accuracy and precision are summarized, and the future perspectives are discussed. chemical vapor generation, inductively coupled plasma mass spectrometry, isotope dilution, trace element determination, speciationCitation:

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Ultra-trace determination of iodine in sediments and biological material using UV photochemical generation-inductively coupled plasma mass spectrometry

Cited by 63 publications

References 43 publications

High-Yield UV-Photochemical Vapor Generation of Iron for Sample Introduction with Inductively Coupled Plasma Optical Emission Spectrometry

High-Yield UV-Photochemical Vapor Generation of Iron for Sample Introduction with Inductively Coupled Plasma Optical Emission Spectrometry

Detection of Bromine by ICP-oa-ToF-MS Following Photochemical Vapor Generation

Application of chemical vapor generation in ICP-MS: A review

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