@article {4255,
	title = {Complementary use of capillary gas chromatography mass spectrometry (ion trap) and gas chromatography inductively coupled plasma mass spectrometry for the speciation of volatile antimony, tin and bismuth compounds in landfill and fermentation gases},
	journal = {Analyst},
	volume = {123},
	number = {5},
	year = {1998},
	note = {ISI Document Delivery No.: ZN568Times Cited: 40Cited Reference Count: 183rd International Symposium on Speciation of Trace Elements in Biological, Environmental and Toxicological SciencesSEP 15-19, 1997PORT DOUGLAS, AUSTRALIAUniv New S Wales, Natl Inst Occupat Hlth, McMaster Univ, Inst Environ \& Hlth, MAFF, CSL, Food Sci Lab},
	month = {May},
	pages = {815-820},
	type = {Proceedings Paper},
	abstract = {ICP-MS is very sensitive and has limited matrix effects when used as an element-specific detector for GC in order to identify volatile metal or metalloid species, GC-MS is not very sensitive or selective in the electron ionization (EI) mode, but provides molecular information about volatile species. In this work, an ion trap EI-MS-MS and an ICP-MS system were used as two different detectors for the same GC system to provide complementary information about volatile organometallic species in the complex matrices of landfill and sewage sludge fermentation gases. A simple robust GC separation method with cryotrapping was adequate for the separation of the different metal(loid) containing volatile compounds, and was directly coupled to the ICP-MS system, In addition, gas samples from this GC system were collected in evacuated vials. These fractions were further separated on a capillary column and detected in an ion trap mass spectrometer. For the first time, parent ions, fragmentation patterns, isotopic ratios for Sb and Sn, and MS-MS data were used to identify positively Me3Sb, Me4Sn and Et2Me2Sn in landfill gas and Me3Sb and Me3Bi in fermentation gas.},
	keywords = {ELEMENTS, fermentation gas, gas chromatography-inductively coupled, ion trap mass spectrometry, landfill gas, MASS SPECTROMETRY, METAL, MS, organometallics, ORGANOTIN COMPOUNDS, trimethylbismuthine, trimethylstibine, VOLATILE, WASTE DEPOSITS},
	isbn = {0003-2654},
	url = {<Go to ISI>://000073658900010},
	author = {Feldmann, J. and Koch, I. and Cullen, W. R.}
}
@article {4287,
	title = {Metal(loid)organic compounds in geothermal gases and waters},
	journal = {Organic Geochemistry},
	volume = {29},
	number = {5-7},
	year = {1998},
	note = {ISI Document Delivery No.: 156HQTimes Cited: 48Cited Reference Count: 5918th International Meeting on Organic GeochemistrySEP 22-26, 1997MAASTRICHT, NETHERLANDSEuropean Assoc Organ Geochemists},
	pages = {1765-1778},
	type = {Proceedings Paper},
	abstract = {Volatile metal(loid)organic species of geogenic and anthropogenic origin are analyzed by low temperature gas chromatography coupled on-line with plasma mass spectrometry (LTGC/ICP MS) with detection limits in the higher pg-range (per m(3) gas). In respect to the determination of aqueous samples, this instrumental technique is combined with sample derivatization by the hydride generation technique. Volatile species of As, Sb, Sr and I could be detected in gases over hot springs in British Columbia (Canada). Methylated species of Hg, Ge, As, Sb and Te were also determined in concentrations in the ng/kg- to low mu g/kg-range in geothermal waters from Ruapehu, Waimangu, Waiotapu and Tokaanu (North Island, New Zealand); up to 1\% of the total dissolved metal(loid)s are found in methylated forms. Volatile metal(loid)organic species of geogenic origin are compared with those emanating from anthropogenic sources (waste and sewage gases, river and harbor sediments). Possible formation mechanisms for these compounds are discussed. (C) 1998 Elsevier Science Ltd. Ail rights reserved.},
	keywords = {ANTIMONY, ATOMIC-ABSORPTION SPECTROMETRY, British Columbia, ENVIRONMENT, geothermal, hot springs, mercury, metal(loid)organic compounds, methylmercury, NATURAL-WATERS, New Zealand, NEW-ZEALAND, SEDIMENTS, sewage gases, VOLATILE METAL, volatile species, WASTE DEPOSITS, WASTE GASES, WATERS},
	isbn = {0146-6380},
	url = {<Go to ISI>://000077995900056},
	author = {Hirner, A. V. and Feldmann, J. and Krupp, E. and Grumping, R. and Goguel, R. and Cullen, W. R.}
}
@article {4183,
	title = {The production of methylated organoantimony compounds by Scopulariopsis brevicaulis},
	journal = {Applied Organometallic Chemistry},
	volume = {12},
	number = {12},
	year = {1998},
	note = {ISI Document Delivery No.: 149RQTimes Cited: 34Cited Reference Count: 37},
	month = {Dec},
	pages = {827-842},
	type = {Article},
	abstract = {Cultures of the fungus Scopulariopsis brevicaulis were grown in antimony-rich media. Although volatile compounds of other elements were readily detected in the culture headspace, volatile antimony compounds were formed irreproducibly and at only ultratrace levels. In order to monitor the media for nonvolatile methylantimony compounds, a method of sample preparation was developed, based on solid-phase extraction. This enabled the separation of large quantities of soluble inorganic antimony species from trace amounts of organo-antimony compounds before speciation by HG-GC-AAS, By this methodology methylated antimony compounds were detected at concentrations of 0.8- 7.1 mu g Sbl(-1) in all media in which S. brevicaulis was grown in the presence of antimony(III) compounds. These methylantimony species were not detected in any of the nonliving or medium-only controls. Methylated compounds were not detected where S. brevicaulis was grown in the presence of antimony(V) compounds. This is the first study to show that antimony(III) compounds are biomethylated by S. brevicaulis under aerobic-only growth conditions. (C) 1998 John Wiley \& Sons, Ltd.},
	keywords = {ANTIMONY, APIOTRICHUM-HUMICOLA, ATOMIC-ABSORPTION SPECTROMETRY, BIOMETHYLATION, biotransformation, GASES, GENERATION, hydride, HYDRIDE GENERATION, infant death syndrome (SIDS), INFANT-DEATH-SYNDROME, LAKE-BIWA, Scopulariopsis brevicaulis, SOLID-PHASE EXTRACTION, SPECIATION, sudden, volatile antimony, VOLATILE METAL, WASTE DEPOSITS},
	isbn = {0268-2605},
	url = {<Go to ISI>://000077619500006},
	author = {Andrewes, P. and Cullen, W. R. and Feldmann, J. and Koch, I. and Polishchuk, E. and Reimer, E.}
}
@article {3959,
	title = {Occurrence of volatile transition metal compounds in landfill gas: Synthesis of molybdenum and Tungsten carbonyls in the environment},
	journal = {Environmental Science \& Technology},
	volume = {31},
	number = {7},
	year = {1997},
	note = {ISI Document Delivery No.: XH483Times Cited: 40Cited Reference Count: 31},
	month = {Jul},
	pages = {2125-2129},
	type = {Article},
	abstract = {Evidence for the occurrence of volatile molybdenum and tungsten compounds in the environment is presented for the first time. The gases from three different municipal waste deposits were sampled and analyzed for volatile metal and metalloid compounds by using gas chromatography coupled with inductively-coupled plasma mass spectrometry (GC-ICP-MS). In addition to the known hydrides and methylated compounds of As, Se, Sn, Sb, Te, Hg, Pb and Bi, volatile Mo and W compounds were found in concentrations of about 0.2-0.3 mu g of Mo/m(3) and 0.005-0.01 mu g of W/m(3). The isotopic fingerprint of the detected Mo and W from the samples matched perfectly with Mo and W standards. The correspondence of the samples{\textquoteright} retention times (GC-ICP-MS) with those of standards provides convincing evidence that Mo(CO)(6) and W(CO)(6) are present in landfill gas. The toxicity and origin of these compounds are discussed.},
	keywords = {SPECIATION, WASTE DEPOSITS},
	isbn = {0013-936X},
	url = {<Go to ISI>://A1997XH48300064},
	author = {Feldmann, J. and Cullen, W. R.}
}
