Determination of alkylarsenic acids in pesticide and environmental samples by gas chromatography with a microwave emission spectrometric detection system

Talmi, Yair; Bostick, D.T.

doi:10.1021/ac60363a042

Cited by 132 publications

(44 citation statements)

References 42 publications

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“…The second peak may correspond to dimethylarsine but this remains speculative as ethylarsine (bp 36 1C) may also be a product. 36 Large amounts of dimethylethylarsine (retention time 5.8 min), diethylmethylarsine (retention time 8.6 min), as well as trimethylarsine (retention time 3.2 min) and triethylarsine (retention time 11.0 min) were readily produced from solutions containing both acetic and propionic acids, as shown in Fig. 3c.…”

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confidence: 96%

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Photochemical alkylation of inorganic arsenic : Part 1. Identification of volatile arsenic species

Guo

Sturgeon

Mester

et al. 2005

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 Photochemical alkylation of inorganic arsenic. Part 1. Identification of volatile arsenic species Guo, X. M.; Sturgeon, R.; Mester, Z.; Gardner, G. 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=8898768&lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?action=rtdoc&an=8898768&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/b503661eJournal of Analytical Atomic Spectrometry, 20, 8, pp. 702-708, 2005 Photochemical alkylation of inorganic arsenic Volatile arsenic species generated by UV irradiation of aqueous solutions of arsenite in low molecular weight (LMW) carboxylic acid media (formic, acetic, propionic and butyric) were identified using ICP-TOF-MS and GC-MS. Cryogenic trapping-GC-MS reveals that inorganic arsenite can be alkylated to yield AsH 3 in the presence of formic acid, trimethylarsine in acetic acid, triethylarsine in propionic acid and tripropylarsine in butyric acid solutions. Mixed ligand arsenic species such as methylarsine, dimethylarsine, dimethylethylarsine and diethylmethylarsine are also formed when a mixture of acids is used. Using 0.05 mg l À1 As(III) as the test solution in 3.1 M acetic acid, a methylation efficiency of approximately 75% was achieved.

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“…Trimethylarsine has been reported earlier as arising from bacterial cultures. [31][32][33][34][35][36] Dimethylethylarsine has been detected in landfill and sewage gas, 37 natural gas 38 as well as river and harbor sediments. 39 Triethylarsine has been detected under conditions similar to those which give rise to dimethylethylarsine.…”

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confidence: 99%

Photochemical alkylation of inorganic arsenic : Part 1. Identification of volatile arsenic species

Guo

Sturgeon

Mester

et al. 2005

J. Anal. At. Spectrom.

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“…Other reported methods for selectively analyzing different arsenic compounds include arsine generation/ spectrophotometry (14), ion-exchange chromatography/differential pulse polarography (10), high pressure liquid chromatography/graphite furnace atomic absorption spectrophotometry (31), gas chromatography/emission spectrophotometry (23), and selective extra,ction with t01uene/ atomic absorption spectrophotometry (AAS) (5).…”

Section: -3140/81/010038-7mentioning

confidence: 99%

A rapid method for the selective analysis of total urinary metabolites of inorganic arsenic.

Norin¹,

Vahter²

1981

Scand J Work Environ Health

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7 (1981) 3'8-44. Total urinary arsenic has traditionally been used for assessing occupational exposure to inorganic arsenic. However, dietary arsenic, especially from seafood, may greatly influence this value. This paper describes a fast and convenient method for routinely measuring the combined amount of inorganic arsenic, methylarsonic acid, and dimethylarsinic acid, which are the major urinary meta!bolites after exposure to inorganic arsenic. Organic arsenic compounds of marine origin are not biotransformed to inorganic arsenic or methylated arsenic acids to any significance in the human body. They do not produce arsines when treated with the reducing agent in the proposed method and will therefore not interfere with the measurements. The sensitivity, accuracy, and precision of the proposed method are sufficient for the determination of concentrations of arsenic normally found in the urine of nonexposed persons. The method is based on a commercially available hydride generation kit attached to an atomic absorption spectrophotometer.

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“…Other related GC-metal detector schemes have also shown great utility in such investigations (10,25,(44)(45)(46)(47)(48).…”

Section: Speciation Of Involatile Organoarsenicals In Aqueous Mediamentioning

confidence: 99%

“…Unfortunately, many of these products may not be readily determined by vaporization methods. Braman and his co-workers (44) and others (46) have effectively utilized controlled reductive cleavage by hydrides as a pretreatment in order to generate simpler methylarsines, MenAsH3_n. These volatile gases are then separated by low-temperature distillation and determined by an element-specific plasma spectrophotometer.…”

Section: Speciation Of Involatile Organoarsenicals In Aqueous Mediamentioning

confidence: 99%

Questions concerning environmental mobility of arsenic: needs for a chemical data base and means for speciation of trace organoarsenicals.

Brinckman¹,

Parris²,

Blair³

et al. 1977

Environ Health Perspect

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Biomethylation of metals, including arsenic, apparently occurs as a global process. Health control strategies therefore depend on accurate analysis of arsenic's environmental mobility. Determining to what extent biotransformations occur and how resultant organometal(loids) are sequestered in food chains requires sophistication beyond present-day total element determinations. Rather, active molecular forms of arsenic must be speciated for each environmental compartment, and it is necessary to quantify the dynamics of arsenic's mobility. Thus, new chemical facts are needed yielding rates of methylation or demethylation of arsenic; partition coefficients of organoarsenicals between air, water, and organic phases; and arsenic redox chemistry in polar media. NBS research in this context is reviewed with examples of recent results emphasizing speciation methodology. Topic areas discussed are: the nature of aquated methylarsenic species (NMR and laser-Raman spectroscopy); transport of methylarsenicals from aqueous media (gas chromatography-graphite furnace AA detection applied to metabolic Me3As formation); and speciation of involatile organoarsenicals in aqueous media (demonstration of HPLC utilizing element-specific AA detection and appraisal of electrochemical detectors). IntroductionBiotransformations of metalloids such as arsenic have been known for years, but only in recent times has the ubiquitous biomethylation of arsenic (1) and a number of other elements, including heavy metals (2-4), become apparent as a general environmental process (5). Clearly, anthropogenic inputs in inorganic materials can and do enhance such transformations, resulting in transport of volatile or lipidsoluble pollutants. Moreover, there is evidence (6) that even higher organisms, specifically man, can invoke elimination processes which involve formation of methylarsenic compounds. Consequently,

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Determination of alkylarsenic acids in pesticide and environmental samples by gas chromatography with a microwave emission spectrometric detection system

Cited by 132 publications

References 42 publications

Photochemical alkylation of inorganic arsenic : Part 1. Identification of volatile arsenic species

Photochemical alkylation of inorganic arsenic : Part 1. Identification of volatile arsenic species

A rapid method for the selective analysis of total urinary metabolites of inorganic arsenic.

Questions concerning environmental mobility of arsenic: needs for a chemical data base and means for speciation of trace organoarsenicals.

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