@article {5000,
	title = {Antimony biomethylation by the wood rotting fungus Phaeolus schweinitzii},
	journal = {Applied Organometallic Chemistry},
	volume = {15},
	number = {6},
	year = {2001},
	note = {ISI Document Delivery No.: 435TUTimes Cited: 18Cited Reference Count: 27},
	month = {Jun},
	pages = {473-480},
	type = {Article},
	abstract = {The wood rotting fungus, Phaeolus schweinitzii, efficiently transforms the antimony(III) compounds potassium antimony tartrate and antimony trioxide to nonvolatile dimethylantimony and trimethylantimony species, The organoantimony species were detected in potato dextrose broth media samples by using hydride generation-gas chromatography-atomic absorption spectroscopy (HG-GC-AAS). The average concentrations of trimethylantimony species after 40 days incubation with potassium antimony tartrate were approximately 35 mug, 155 mug and 520 mug Sb/l, for substrate concentrations of 10 mg, 100 mg and 1000 mg Sb/l respectively. Thus, the maximum yield of trimethylantimony species was approximately 0.4\%, When antimony trioxide (saturated solution, 4 mg Sb/l) was used as a substrate, the average concentration of trimethylantimony species was 150 mug Sb/l after 40 days. The HG-GC-AAS response for the dimethylantimony species was less than that for the trimethylantimony species; however, quantification was not possible because of the lack of an appropriate standard. In comparison, cultures of P, schweinitzii incubated with 1 mg As/I as sodium arsenite contained approximately 200 mug As/I as trimethylarsenic species, i.e. 20\% yield, Biomethylation of antimony(V) was inefficient: cultures contained only 3 mug Sb/l as trimethylantimony species after incubation with 100 mg Sb/l as potassium hexahydroxyantimonate, No organoantimony species were detected in control cultures that contained only medium and inorganic antimony compounds. The identities of the organoantimony species were confirmed by using CC-Mass Spectrometry, Copyright (C) 2001 John Wiley \& Sons, Ltd.},
	keywords = {ABSORPTION SPECTROSCOPY, CHROMATOGRAPHY MASS-SPECTROMETRY, chromatography-atomic, CONFIRMATION, CULTURES, dimethylantimony, GENERATION, GROWTH, HUMICOLA, hydride generation-gas, infant death syndrome (SIDS), INFANT-DEATH-SYNDROME, MICROORGANISMS, Phaeolus schweinitzii, SCOPULARIOPSIS-BREVICAULIS, SPECIATION, sudden, trimethylantimony},
	isbn = {0268-2605},
	url = {<Go to ISI>://000168897900005},
	author = {Andrewes, P. and Cullen, W. R. and Polishchuk, E. and Reimer, K. J.}
}
@article {4718,
	title = {Antimony biomethylation by Scopulariopsis brevicaulis: characterization of intermediates and the methyl donor},
	journal = {Chemosphere},
	volume = {41},
	number = {11},
	year = {2000},
	note = {ISI Document Delivery No.: 345WVTimes Cited: 15Cited Reference Count: 23},
	month = {Dec},
	pages = {1717-1725},
	type = {Article},
	abstract = {The filamentous fungus Scopulauiopsis brevicaulis biomethylates inorganic antimony(III) compounds to trimethylstibine, that can be detected in culture headspace gases. Dimethylantimony and trimethylantimony species have been detected in the medium of these cultures, but the origin of these species was controversial. We now show that the dimethylantimony species is a true intermediate on the pathway to trimethylstibine (rather than arising from trimethylstibine oxidation or as an analytical artifact) because no dimethylantimony species are formed on trimethylstibine oxidation, as determined by using HG-GC-AAS. Furthermore, the dimethylantimony and trimethylantimony species can be separated, by using anion exchange chromatography, and so the dimethylantimony species is not an analytical artifact, formed during the hydride generation process. The antimony biomethylation mechanism was further probed by measuring incorporation of the methyl group, from (CD3)-C-13-L-methionine and CD3-D-methionine, into methylantimony species and, for comparison, into methylarsenic species. The percentage incorporation of the labeled methyl group into methylarsenic and methylantimony species was not significantly different. The incorporation from (CD3)-C-13-L-methionine was 54\% and 47\% for antimony and arsenic, respectively. The incorporation from CD3-D-methionine was 20\% and 16\% for antimony and arsenic, respectively. It appears that the biomethylation of arsenic and antimony occur by very similar, perhaps identical, mechanisms. (C) 2000 Elsevier Science Ltd. All rights reserved.},
	keywords = {APIOTRICHUM-HUMICOLA, arsenic, dimethylantimony, GENERATION, GROWTH, INFANT-DEATH-SYNDROME, INORGANIC ANTIMONY, METHIONINE, RELEVANCE, Scopulariopsis brevicaulis, SPECIATION, trimethylantimony, TRIMETHYLARSINE, trimethylstibine, trimethylstibine oxidation},
	isbn = {0045-6535},
	url = {<Go to ISI>://000088838900002},
	author = {Andrewes, P. and Cullen, W. R. and Polishchuk, E.}
}
@article {4311,
	title = {Demethylation of trimethylantimony species in aqueous solution during analysis by hydride generation gas chromatography with AAS and ICP MS detection},
	journal = {Applied Organometallic Chemistry},
	volume = {12},
	number = {2},
	year = {1998},
	note = {ISI Document Delivery No.: YY039Times Cited: 34Cited Reference Count: 12},
	month = {Feb},
	pages = {129-136},
	type = {Article},
	abstract = {The method of hydride generation for the speciation of antimony compounds was examined with respect to the problem of molecular {\textquoteright}rearrangement{\textquoteright}. Specifically, demethylation of trimethylstilbine during the analysis of trimethylantimony dichloride (Me3SbCl2) was studied, Previously published observations that enhanced demethylation takes place as a result of inadequate preconditioning of the analytical apparatus were found to be not reproducible, However, demethylation was enhanced as the pH decreased when using two different analytical methods: semi-continuous how hydride generation-gas chromatography-atomic absorption spectrometry (HG-GC-AAS), and batch-type hydride generation-gas chromatography-inductively coupled mass spectrometry (HG-GC-ICP MS). Applications of the hydride generation method to environmental samples revealed differences in analytical results at high and low pH, and enhanced demethylation taking place because of the matrix in a fungal extract sample, The authors recommend that researchers using the method of hydride generation for antimony compounds carefully test the reaction conditions with standard compounds and use the method of standard addition only. (C) 1998 John Wiley \& Sons, Ltd.},
	keywords = {ANTIMONY(V), ATOMIC-ABSORPTION SPECTROMETRY, demethylation, HYDRIDE GENERATION, molecular rearrangement, NATURAL-WATERS, SPECIATION, trimethylantimony},
	isbn = {0268-2605},
	url = {<Go to ISI>://000072106100006},
	author = {Koch, I. and Feldmann, J. and Lintschinger, J. and Serves, S. V. and Cullen, W. R. and Reimer, K. J.}
}
@article {7217,
	title = {METHYLATED ANTIMONY(V) COMPOUNDS - SYNTHESIS, HYDRIDE GENERATION PROPERTIES AND IMPLICATIONS FOR AQUATIC SPECIATION},
	journal = {Applied Organometallic Chemistry},
	volume = {6},
	number = {2},
	year = {1992},
	note = {ISI Document Delivery No.: HQ168Times Cited: 44Cited Reference Count: 16INTERNATIONAL CONF ON ENVIRONMENTAL AND BIOLOGICAL ASPECTS OF MAIN-GROUP ORGANOMETALS ( ICEBAMO )SEP 15-19, 1991PADUA, ITALYUNIV PADUA, ITALIAN CHEM SOC},
	month = {Apr},
	pages = {207-211},
	type = {Proceedings Paper},
	abstract = {Reports in the literature that the compounds MeSb(O)(OH)2 and Me2Sb(O)OH are present in marine and fresh-waters need to be re-examined. The results of several synthetic strategies suggest that these methylantimony(V) compounds are either environmentally inaccessible or polymeric in nature. Pure samples of various di- and trimethylated antimony(V) species were prepared and found to undergo molecular rearrangement reactions when subjected to hydride generation procedures typically used for aquatic speciation.},
	keywords = {analysis, AQUATIC SPECIATION, ARSENIC SPECIATION, dimethylantimony, GCAA, HYDRIDE GENERATION, trimethylantimony},
	isbn = {0268-2605},
	url = {<Go to ISI>://A1992HQ16800014},
	author = {Dodd, M. and Grundy, S. L. and Reimer, K. J. and Cullen, W. R.}
}
