@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 {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 {4059,
	title = {Determination of antimony species with high-performance liquid chromatography using element specific detection},
	journal = {Fresenius Journal of Analytical Chemistry},
	volume = {359},
	number = {6},
	year = {1997},
	note = {ISI Document Delivery No.: YJ059Times Cited: 52Cited Reference Count: 27},
	month = {Nov},
	pages = {484-491},
	type = {Article},
	abstract = {A new method for the fast and simultaneous determination of Sb(III) and Sb(V) is presented involving the use of anion exchange high-performance liquid chromatography (HPLC), a complexing reagent in the mobile phase, and element specific detection with flame atomic absorption spectrometry (FAAS) or inductively coupled plasma mass spectrometry (ICP-MS). Chromatographic parameters such as nature and concentration of the complexing and eluting compounds and pH of the mobile phase were investigated in detail. Additionally, the separation of inorganic Sb(III) and Sb(V) from organically bounded antimony (as (CH3)(3)SbCl2 and (CH3)(3)Sb(OH)(2)) was investigated by using anion, and cation exchange, and reversed phase HPLC. Best separation was obtained with anion exchange HPLC under alkaline conditions. Cation exchange and reversed-phase HPLC were not useful for the separation of the above compounds. With FAAS concentrations in the upper mg L-1 range are detectable, which is not sensitive enough for the analyses of environmental samples. When the chromatographic system was coupled to ICP-MS, the detection limits are in the lower mu g L-1 range. The method was applied to various environmental samples with anthropogenic and naturally elevated Sb concentrations.},
	keywords = {ATOMIC-ABSORPTION SPECTROMETRY, HYDRIDE GENERATION, NATURAL-WATERS, PRECONCENTRATION, SB(III), SB(V), SEPARATION, SPECIATION},
	isbn = {0937-0633},
	url = {<Go to ISI>://A1997YJ05900004},
	author = {Lintschinger, J. and Koch, I. and Serves, S. and Feldmann, J. and Cullen, W. R.}
}
@article {3094,
	title = {EFFECT OF CYSTEINE ON THE SPECIATION OF ARSENIC BY USING HYDRIDE GENERATION ATOMIC-ABSORPTION SPECTROMETRY},
	journal = {Analytica Chimica Acta},
	volume = {285},
	number = {3},
	year = {1994},
	note = {ISI Document Delivery No.: MV474Times Cited: 61Cited Reference Count: 41},
	month = {Jan},
	pages = {277-285},
	type = {Article},
	abstract = {The use of hydride generation techniques for arsenic species is pH dependent. Identical responses can not be obtained from arsenite, arsenate, monomethylarsonic acid (MMAA) and dimethylarsinic acid (DMAA) when the same acid concentration is used. Thus some methods commonly used for the direct determination of total arsenic under compromised conditions are subject to error. This error is eliminated by the addition of 2\% cysteine to samples prior to hydride generation. In the presence of cysteine the optimum condition for the determination of these arsenic species is in the same range, and a single arsenic species can be used for calibration. This finding is applied to the determination of arsenic in human urine by using flow injection, hydride generation, and atomic absorption spectrometry methodology. The effect of cysteine and thioglycerol is reported in detail, and it is proposed that arsenate, MMAA and DMAA all in the As(V) state, are reduced to the As(III) state as organo-sulfur-arsenic(III) compounds through the reaction between the arsenic species and the thiol. These products, organosulfur derivatives of arsenic(III), easily react with tetrahydroborate(III) under similar conditions to afford the arsines without interference from cysteine. Non-thiol-containing amino acids such as methionine, glycine and histidine do not react with arsenic species in this way, and therefore they do not affect the pH dependence of the generation of arsenic hydride species.},
	keywords = {AMOUNTS, ANTIMONY, ARSENIC SPECIATION, ATOMIC ABSORPTION SPECTROMETRY, CHROMATOGRAPHY, CYSTEINE, EMISSION-SPECTROMETRY, ENVIRONMENT, FLOW INJECTION, HUMAN URINE, HYDRIDE GENERATION, INTERFERENCE REDUCTION, L-CYSTINE, NATURAL-WATERS, selenium, SPECTROSCOPY, TIN, TRACE},
	isbn = {0003-2670},
	url = {<Go to ISI>://A1994MV47400004},
	author = {Le, X. C. and Cullen, W. R. and Reimer, K. J.}
}
@article {3003,
	title = {THE METHYLATION OF ARSENATE BY A MARINE ALGA POLYPHYSA-PENICULUS IN THE PRESENCE OF L-METHIONINE-METHYL-D(3)},
	journal = {Chemosphere},
	volume = {28},
	number = {5},
	year = {1994},
	note = {ISI Document Delivery No.: NC959Times Cited: 13Cited Reference Count: 39},
	month = {Mar},
	pages = {1009-1019},
	type = {Article},
	abstract = {Polyphysa peniculus growing in artificial seawater methylates arsenate to produce a dimethylarsenic derivative, probably dimethylarsinate. When L-methionine-methyl-d3 is added to the culture the CD3 label is incorporated intact in the dimethylarsenic compound to a considerable extent, indicating that S-adenosylmethionine, or some related sulphonium compound, is involved in the biological methylation. Conclusive evidence of the CD3 incorporation was provided by using a specially developed hydride generation-gas chromatography-mass spectrometry methodology.},
	keywords = {ALGAE, arsenic, COMPOUNDS, CONTAINING RIBOFURANOSIDES, ENVIRONMENT, GENERATION GAS CHROMATOGRAPHY MASS SPECTROMETRY (HG-GC-MS), hydride, IDENTIFICATION, KELP ECKLONIA-RADIATA, L-METHIONINE-METHYL-D(3), METHYLARSENIC COMPOUNDS, METHYLATION, NATURAL-WATERS, ORGANOARSENIC, REDUCTION, SPECIATION, SPECTROMETRY},
	isbn = {0045-6535},
	url = {<Go to ISI>://A1994NC95900016},
	author = {Cullen, W. R. and Li, H. and Pergantis, S. A. and Eigendorf, G. K. and Harrison, L. G.}
}
