Determination of volatile metal and metalloid compounds in gases from domestic waste deposits with GC/ICP-MS

Feldmann, Jörg; Grümping, R.; Hirner, Alfred V.

doi:10.1007/bf00322474

Cited by 102 publications

(92 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It diffuses readily into plastic stoppers [12][13][14]. Safety Information for molybdenum hexacarbonyl is given in Table 2.…”

Section: Safety and Handlingmentioning

confidence: 99%

See 1 more Smart Citation

The chemistry of group-VIb metal carbonyls

Kaushik¹,

Singh²,

Kumar³

2012

Eur. J. Chem.

View full text Add to dashboard Cite

KEYWORDSThe special interest attached to the chemistry of metal carbonyls arises from several causes. While quite distinct from the metal carbonyls in the organometallic compounds, they differ in physical properties (e.g., their volatility) from all other compounds of the transition metals. Chemically, they constitute a group of compounds in which the formal valency of the metal atoms is zero, and in this respect (apart, perhaps, from the ammoniates of the alkali metals) they are comparable only with the recently discovered compounds. As a class, the carbonyls are reactive compounds, and a number of new types of inorganic compounds have been discovered. In the concepts for new products, performance, product safety, and product economy criteria are equally important. They are taken into account already when the raw material base for a new industrial product development is defined. Since the discovery of nickel carbonyl by Mond and Langer in 1888, the carbonyls of the iron group and of chromium, molybdenum and tungsten have found important technical applications, e.g., in the Mond nickel process, and for the preparation of the metals in a state of subdivision and of purity suitable for powder metallurgy, for catalysts, etc. The reaction mechanism of the processes developed for producing the carbonyls technically has only recently received its interpretations. Within the space of review it is necessary to limit discussion to a few topics. Particular stress has accordingly laid upon (a) the chemical bonding in metal carbonyls, (b) importance of IR and NMR spectroscopy in characterization of metal carbonyls, (c) substitution reactions of G-VIb metal carbonyls, (d) kinetics and mechanism of substitution reactions in metal carbonyls, (e) substituted complexes of G-VIb metal carbonyl, (f) chelate complexes of G-VIb metal carbonyls, (g) uses of G-VIb metal carbonyl complexes and (h) studies done on G-VIb metal carbonyls.

show abstract

“…It diffuses readily into plastic stoppers [12][13][14]. Safety Information for molybdenum hexacarbonyl is given in Table 2.…”

Section: Safety and Handlingmentioning

confidence: 99%

“…About six decades ago study of CO exchange using 14 CO, and of CO substitution with P-ligands on binary metal carbonyls. Since very little work [131] of this type had been done at that time, the observations were often a source of some surprise.…”

Section: Ring Slipping Mechanismmentioning

confidence: 99%

The chemistry of group-VIb metal carbonyls

Kaushik¹,

Singh²,

Kumar³

2012

Eur. J. Chem.

View full text Add to dashboard Cite

show abstract

“…A more-sophisticated analytical technique (on-line coupling of gas chromatography with ICP-MS) later detected volatile metal and metalloid species in landfill and sewage gases (85,86,121). For arsenic, the gases from both sources contained (CH 3 ) 2 AsH, (CH 3 ) 3 As, and, interestingly, (CH 3 ) 2 C 2 H 5 As.…”

Section: Role Of Anaerobic Microorganismsmentioning

confidence: 99%

Microbial Methylation of Metalloids: Arsenic, Antimony, and Bismuth

Bentley

Chasteen

2002

Microbiol Mol Biol Rev

515

316

View full text Add to dashboard Cite

A significant 19th century public health problem was that the inhabitants of many houses containing wallpaper decorated with green arsenical pigments experienced illness and death. The problem was caused by certain fungi that grew in the presence of inorganic arsenic to form a toxic, garlic-odored gas. The garlic odor was actually put to use in a very delicate microbiological test for arsenic. In 1933, the gas was shown to be trimethylarsine. It was not until 1971 that arsenic methylation by bacteria was demonstrated. Further research in biomethylation has been facilitated by the development of delicate techniques for the determination of arsenic species. As described in this review, many microorganisms (bacteria, fungi, and yeasts) and animals are now known to biomethylate arsenic, forming both volatile (e.g., methylarsines) and nonvolatile (e.g., methylarsonic acid and dimethylarsinic acid) compounds. The enzymatic mechanisms for this biomethylation are discussed. The microbial conversion of sodium arsenate to trimethylarsine proceeds by alternate reduction and methylation steps, with S-adenosylmethionine as the usual methyl donor. Thiols have important roles in the reductions. In anaerobic bacteria, methylcobalamin may be the donor. The other metalloid elements of the periodic table group 15, antimony and bismuth, also undergo biomethylation to some extent. Trimethylstibine formation by microorganisms is now well established, but this process apparently does not occur in animals. Formation of trimethylbismuth by microorganisms has been reported in a few cases. Microbial methylation plays important roles in the biogeochemical cycling of these metalloid elements and possibly in their detoxification. The wheel has come full circle, and public health considerations are again important

show abstract

“…Monoand dimethylantimony species have been found to be formed in both marine and fresh waters. 4,5 Moreover, Feldmann et al 6 reported the volatilization of antimony from environmental sediments and municipal waste sites, suggesting antimony biomethylation under anaerobic conditions. Otherwise, the presence of organoantimony compounds in plants has *Correspondence to: J. F. López-Sánchez, Departament de Química Analítica, Universitat de Barcelona, Martí i Franquès, 1-11, 08028-Barcelona, Spain.…”

Section: Introductionmentioning

confidence: 99%

On‐line photodecomposition for the determination of antimony species

Miravet

Bonilla

López-Sánchez

et al. 2005

Applied Organom Chemis

View full text Add to dashboard Cite

On-line UV photooxidation by peroxodisulfate was coupled to ion chromatography hydride generation atomic fluorescence spectroscopy (IC-UV-HG-AFS) for the speciation of inorganic antimony [Sb(III) and Sb(V)] and methylated species. Several parameters (UV lamp, irradiation time and peroxodisulfate concentration) that greatly influence the sensitivity of these three antimony species were investigated in depth. Under optimized conditions, photodecomposition resulted in an improvement in methylantimony species sensitivity. Dilution in di-ammonium tartrate medium was necessary in order to ensure short-term stability of Sb(III) at the µg l −1 concentration level. Furthermore, the efficiency of irradiation was strongly dependent on the chemical composition of the measured solution. Detection limits of 0.04 µg l −1 for Sb(V), 0.03 µg l −1 for Me 3 SbCl 2 and 0.03 µg l −1 for Sb(III) as well as repeatability and reproducibility better than 4 and 8% RSD, respectively, were obtained. The proposed methodology was applied for antimony speciation in terrestrial plant sample extracts.

show abstract

Determination of volatile metal and metalloid compounds in gases from domestic waste deposits with GC/ICP-MS

Cited by 102 publications

References 31 publications

The chemistry of group-VIb metal carbonyls

The chemistry of group-VIb metal carbonyls

Microbial Methylation of Metalloids: Arsenic, Antimony, and Bismuth

On‐line photodecomposition for the determination of antimony species

Contact Info

Product

Resources

About