@article {918,
	title = {Arsenic speciation in human urine: are we all the same?},
	journal = {Toxicology and Applied Pharmacology},
	volume = {198},
	number = {3},
	year = {2004},
	note = {ISI Document Delivery No.: 844GRTimes Cited: 26Cited Reference Count: 34},
	month = {Aug},
	pages = {297-306},
	type = {Review},
	abstract = {we studied the arsenic speciation in human urine samples by using high-performance liquid chromatography-inductively coupled plasma-mass spectrometry (HPLC-ICP-MS). We investigated the arsenic speciation in the urine collected from nine volunteers during a 3-day period after a meal of blue mussels, Mytilus edulis. We also studied the effect of cooking on the arsenic speciation. Arsenobetaine and dimethylarsinic acid (DMAA) were the major arsenic metabolites found in the urine samples. Significant amounts of unknown metabolites were also detected. The excretion patterns of arsenic from individuals were generally similar except for two subjects. One of whom excreted high amounts of arsenobetaine even though no arsenic-rich food was eaten for 3 days before the experiment. The results reveal that we need a better understanding of the metabolism of arsenic compounds by human. (C) 2004 Elsevier Inc. All rights reserved.},
	keywords = {arsenic, arsenobetaine, arsenosugar, ENVIRONMENT, HPLC, ICP-MS, IDENTIFICATION, INGESTION, LIQUID-CHROMATOGRAPHY, MASS-SPECTROMETRY, METABOLITES, METHYLATED ARSENICALS, mussel, PRODUCTS, TRIVALENT, urine},
	isbn = {0041-008X},
	url = {<Go to ISI>://000223146600007},
	author = {Lai, V. W. M. and Sun, Y. M. and Ting, E. and Cullen, W. R. and Reimer, K. J.}
}
@article {427,
	title = {Arsenic speciation in whelks, Bucciunum undatum},
	journal = {Applied Organometallic Chemistry},
	volume = {16},
	number = {8},
	year = {2002},
	note = {ISI Document Delivery No.: 582FYTimes Cited: 6Cited Reference Count: 2510th International Symposium on Natural and Industrial Arsenic of the Japanese-Arsenic-Scientists-SocietyNOV 29-30, 2001TOKYO, JAPANJapanese Arsen Scientists Soc},
	month = {Aug},
	pages = {458-462},
	type = {Proceedings Paper},
	abstract = {The arsenic species present in the foot muscle of whelks, Buccinum undatum, collected from Newfoundland, Canada, were characterized by using high-performance liquid chromatography-inductively coupled plasma mass spectrometry. All samples contain high amounts of arsenic, mostly over 100 mug g(-1) (as arsenic, dry weight basis), and one sample contained up to 1360 mug g(-1). These values are considerably higher than those reported in other gastropods. Speciation studies of representative samples revealed arsenobetaine as the major water-soluble arsenic compound, together with trace amounts of an arsenosugar. No inorganic arsenic species were detected in the sample extracts, indicating that consumption of the whelks poses little human risk. Copyright (C) 2002 John Wiley Sons, Ltd.},
	keywords = {arsenic, arsenobetaine, arsenosugar, HPLC, ICP-MS, LIQUID-CHROMATOGRAPHY, MASS SPECTROMETRY, SPECIATION, whelks},
	isbn = {0268-2605},
	url = {<Go to ISI>://000177340200011},
	author = {Lai, V. W. M. and Beach, A. S. and Cullen, W. R. and Ray, S. and Reimer, K. J.}
}
@article {5118,
	title = {Arsenic speciation in sea scallop gonads},
	journal = {Applied Organometallic Chemistry},
	volume = {15},
	number = {6},
	year = {2001},
	note = {ISI Document Delivery No.: 435TUTimes Cited: 15Cited Reference Count: 19},
	month = {Jun},
	pages = {533-538},
	type = {Article},
	abstract = {The arsenic species in male and female sea scallop gonads (Placopecten magellanicus) at pre-spawning and post-spawning stages, collected near Newfoundland, Canada, were characterized by using high-performance liquid chromatography-inductively coupled plasma-mass spectrometry, All samples contain arsenobetaine (0.5-3.0 mug g(-1)) and a dimethylarsinoylriboside derivative as the major water-soluble arsenic compounds. Male pre-spawning gonads contain 0.35-2.4 mug g(-1) of the dimethylarsinoylriboside, Female pre-spawning gonads contain 0.47-9.64 mug g(-1) of the same compound. Postspawning gonads, both male and female, contain higher concentrations of this compound (3.7-11.4 mug g(-1)). The total concentrations of water-soluble arsenic compounds are different in male and female pre-spawning gonads. These differences are not obvious in post-spawning gonads. Post-spawning gonads contain higher total concentrations of water-soluble arsenic compounds than pre-spawning gonads. Copyright (C) 2001 John Wiley \& Sons, Ltd.},
	keywords = {arsenic, arsenobetaine, arsenosugar, HEPATOCYTES, HPLC, ICP-MS, MONOMETHYLARSONOUS ACID, RAT, scallops, SPECIATION},
	isbn = {0268-2605},
	url = {<Go to ISI>://000168897900012},
	author = {Lai, V. W. M. and Cullen, W. R. and Ray, S.}
}
@article {4593,
	title = {Arsenic speciation in scallops},
	journal = {Marine Chemistry},
	volume = {66},
	number = {1-2},
	year = {1999},
	note = {ISI Document Delivery No.: 214FQTimes Cited: 42Cited Reference Count: 33},
	month = {Jul},
	pages = {81-89},
	type = {Article},
	abstract = {The arsenic species present in the muscle and the gonad of scallops collected near Newfoundland were characterized by using high performance liquid chromatography-inductively coupled plasma-mass spectrometry (HPLC-ICP-MS). The adductor muscle of the scallops (2.1-9.4 mu g As g(-1)) contains arsenobetaine (AsB) as the major water-soluble arsenic compound. The gonads of the scallops (7.3-44.1 mu g As g(-1)) contain dimethylarsinoylriboside derivatives as the major arsenic compound, as well as lower amounts of AsB. No inorganic arsenic species was detected in the sample extracts indicating that consumption of the scallops poses little human risk. (C) 1999 Elsevier Science B.V. All rights reserved.},
	keywords = {arsenic, arsenobetaine, arsenosugar, CONTAINING RIBOFURANOSIDES, HPLC, ICP-MS, IDENTIFICATION, SAMPLES, scallops, SEAWEED, SPECIATION},
	isbn = {0304-4203},
	url = {<Go to ISI>://000081318300004},
	author = {Lai, V. W. M. and Cullen, W. R. and Ray, S.}
}
@article {4528,
	title = {Elemental analysis with quadrupole mass filters operated in higher stability regions},
	journal = {Journal of Analytical Atomic Spectrometry},
	volume = {14},
	number = {8},
	year = {1999},
	note = {ISI Document Delivery No.: 229LPTimes Cited: 23Cited Reference Count: 47},
	month = {Aug},
	pages = {1111-1119},
	type = {Article},
	abstract = {Operation of quadrupole mass filters in higher zones of stability is described with an emphasis on the potential for elemental mass spectrometry. The higher zones allow a resolution at half height of up to 9000 on atomic ions and make possible unit resolution on ions with kinetic energies up to several thousand electron volts. The theory of quadrupole operation is briefly reviewed. Operation of quadrupoles in the third stability region with Mathieu parameters (a,q)approximate to(3,3) and the second stability region with (a,q)approximate to(0.02, 7.55) is described in detail. Previously unpublished data showing the variation of resolution with ion energy are presented. The variation of transmission with resolution is compared with previous calculations and with new calculations presented here.},
	keywords = {2ND, ANALYZER, ATMOSPHERE, DIAGRAM, HELIUM, HIGH-RESOLUTION, ICP-MS, SEPARATION MODE, SPECTROMETER, ZONE},
	isbn = {0267-9477},
	url = {<Go to ISI>://000082196300002},
	author = {Du, Z. H. and Douglas, D. J. and Konenkov, N.}
}
@article {4534,
	title = {Methylated bismuth in the environment},
	journal = {Applied Organometallic Chemistry},
	volume = {13},
	number = {10},
	year = {1999},
	note = {ISI Document Delivery No.: 243BTTimes Cited: 24Cited Reference Count: 424th International Conference on Biological and Environmental Aspects of Main Group OrganometallicsJUN, 1998ODENSE, DENMARK},
	month = {Oct},
	pages = {739-748},
	type = {Proceedings Paper},
	abstract = {Biomethylation of metals and metalloids of Group 14 and 15 metals such as tin, lead and arsenic takes place in the environment, but information about methylated bismuth compounds is rather limited, although bismuth compounds are used widely in alloys, cosmetics and pharmaceutical products, Cryotrapping gas chromatography and hydride generation gas chromatography coupled with an ICP-MS as a bismuth-selective detector were used to determine volatile bismuth compounds in landfill and in sewage gas, as well as non-volatile methylated compounds in water and sediment samples, One volatile bismuth compound could be determined in gaseous samples; it was identified as Me3Bi (TMB) by element-specific detection (ICP-MS, m/z 209), matching the retention time with a TMB standard. The molecular structure was recently confirmed by gas-chromatographic fractionation with MS-ion trap detection (electron impact), Among other volatile metal compounds, TMB is a major component in the gases of sewage sludge digesters: concentrations of up to 25 mu g m(-3) have been measured at eight sewage treatment plants, The concentration in landfill gas was approximately one order of magnitude lower. In laboratory experiments, fermenters containing an anaerobic culture from a clean pond sludge were mixed with contaminated soil from four different industrial areas, After an incubation time of two weeks at 30 degrees C in the dark, TMB was detected in the headspace of all the samples, The volatilization rate of bismuth did mot correlate with the total amount of bismuth: in the sediments or with the available fraction after acid digestion following hydride generation. Some evidence was obtained for the occurrence of methylated bismuth compounds in water samples and in sediments, Copyright (C) 1999 John Wiley \& Sons, Ltd.},
	keywords = {ABSORPTION, BIOMETHYLATION, BISMUTH, deposits, GAS-CHROMATOGRAPHY, ICP-MS, landfill gas, PLASMA-MASS SPECTROMETRY, sewage gas, SPECIATION, VOLATILE METAL, WASTE},
	isbn = {0268-2605},
	url = {<Go to ISI>://000082977800010},
	author = {Feldmann, J. and Krupp, E. M. and Glindemann, D. and Hirner, A. V. and Cullen, W. R.}
}
@article {4348,
	title = {The determination of dissolved zirconium and hafnium from seawater using isotope dilution inductively coupled plasma mass spectrometry},
	journal = {Marine Chemistry},
	volume = {60},
	number = {3-4},
	year = {1998},
	note = {ISI Document Delivery No.: ZR467Times Cited: 23Cited Reference Count: 22},
	month = {Apr},
	pages = {245-255},
	type = {Article},
	abstract = {This paper describes the development of an analytical technique utilizing isotope dilution and inductively coupled plasma mass spectrometry (ICP/MS) to determine the picomolar and femtomolar concentrations of dissolved Zr and Hf found in seawater. Data acquired using this technique are presented to verify the method; in the subarctic North Pacific Zr ranges from 25 to 366 pmol/kg and Hf from 0.20 to 1.02 pmol/kg, with concentrations increasing smoothly with depth. The chelating ion-exchange resin, Chelex-100, was found to be suitable for the extraction/concentration step required for the determination of dissolved Zr and Hf in seawater using isotope dilution analysis. The extraction was optimized for pH, flow rate, resin volume, elution volume, and the time required for isotope equilibration. The isotope ratios Zr-91/Zr-90 and Hf-178/Hf-177 were measured using flow injection ICP/MS. The detection limits for a one litre sample are 0.21 and 0.03 pmol/kg for Zr and Hf, respectively. The analytical precision (Is) of the technique improves with increasing concentration and varies from 7\% at 42 pmol/kg to 2.5\% at 280 pmol/kg for Zr and from 22\% at 0.28 pmol/kg to 9\% at 1.4 pmol/kg for Hf. (C) 1998 Elsevier Science B.V.},
	keywords = {aluminum, ATLANTIC, ATOMIC-ABSORPTION SPECTROMETRY, Chelex-100, hafnium, ICP-MS, OCEAN, SEA-WATER, SEAWATER, trace metals, TRACE-METALS, ZIRCONIUM},
	isbn = {0304-4203},
	url = {<Go to ISI>://000073979800008},
	author = {McKelvey, B. A. and Orians, K. J.}
}
@article {2964,
	title = {ATOMIC MASS-SPECTROMETRY},
	journal = {Applied Spectroscopy},
	volume = {48},
	number = {11},
	year = {1994},
	note = {ISI Document Delivery No.: PW171Times Cited: 7Cited Reference Count: 65},
	month = {Nov},
	pages = {A12-A18},
	type = {Review},
	keywords = {DISCHARGE SOURCE, ELECTROTHERMAL VAPORIZATION, ELEMENTAL ANALYSIS, GEOLOGICAL-MATERIALS, ICP-MS, inductively coupled plasma, LASER, METAL, MICROPROBE, SAMPLE INTRODUCTION, SOLIDS},
	isbn = {0003-7028},
	url = {<Go to ISI>://A1994PW17100002},
	author = {Blades, M. W.}
}
