Speciation arsenic

The bacterial palsmid presumably responds to arsenite (As(III)), but the fact of reducing the arsenate to arsenite has been established, reflecting in slower plasmid respond. It permits us to make arsenic speciation using simple and rapid assay. [Pg.428]

Andreae, M. O. (1979). Arsenic speciation in seawater and interstitial waters the role of biological-chemical interactions on the chemistry of a trace element. Limnol. Oceanog. 24,440-452. [Pg.416]

Zhang X, Cornelis R, De Kimpe J, and Mees L (1996) Arsenic speciation in serum of uraemic patients based on liquid chromatography with hydride generation atomic absorption spectrometry and on-line UV photo-oxidation digestion. Anal Chim Acta 319 177-185. [Pg.110]

Lafferty BJ, Loeppert RH (2005) Methyl arsenic adsorption and desorption be-hatior on iron oxides. Environ Sci Technol 39 2120—2127 Le XC (2002) Arsenic speciation in the environment and humans. In Frankenberger WT Jr (ed) Environmental chemistry of arsenic. Marcel Dekker, Inc. New York, pp 95-116... [Pg.66]

Bigler, J. and E. Crecelius. 1998. Methods for the analysis of arsenic speciation in seafood from Cook Inlet, Alaska. SEGH 3rd Inter. Conf. Arsenic Expos. Health Effects 9. [Pg.1534]

Haswell, S.J., P. O Neill, and K. C Bancroft. 1985. Arsenic speciation in soil-pore waters from mineralized and unmineralized areas of south-west England. Talanta 32 69-72. [Pg.1537]

Arsenic speciation in wastes resulting from pressure oxidation,... [Pg.359]

KEYWORDS Arsenic, speciation, mine wastes, impacted soil, XAFS... [Pg.359]

Several examples of arsenic speciation in wastes resulting from pressure oxidation, roasting and smelting, and impacted soil are given in this manuscript with the overall goal to promote further research in this area. [Pg.359]

Walker, S.W. Jamieson, H.E., Lanzirotti, A., Andrade, C.F. 2005. Determining arsenic speciation in iron oxides derived from a gold-roasting operation Application of... [Pg.362]

Marin A, Lopez-Gonzalvez A, Barbas C. Development and validation of extraction methods for determination of zinc and arsenic speciation in soils using focused ultrasound application to heavy metal study in mud and soils. Anal. Chim. Acta 2001 442 305-318. [Pg.149]

ARSENIC SPECIATION FOR INVESTIGATION OF ITS ENVIRONMENTAL FATE - A CASE STUDY... [Pg.66]

The samples were collected in polyethylene bottles and stored at 4°C. Water samples were stabilized for arsenic speciation using phosphoric acid to yield a final concentration of 10 mM [2]. Wet material was used for the extraction and the dry weight was calculated by weighing a different part of the sample after drying (105°C). [Pg.67]

B. Daus, H. Weiss, R. Wennrich (1998) Arsenic speciation in iron hydroxide precipitates.- Talanta 46, 867 - 873... [Pg.70]

For the determination of organotin compounds (tributyltin, triphenyltin, triethyltin, and tetra-ethyltin) a MAE is proposed before the normal phase (NP) HPLC/UV analysis [35], In organotin and arsenic speciation studies, hydride generation is the most popular derivatization method, combined with atomic absorption and fluorescence spectroscopy or ICP techniques [25,36], Both atmospheric pressure chemical ionization (APCI)-MS and electrospray ionization ESI-MS are employed in the determination of butyltin, phenyltin, triphenyltin, and tributyltin in waters and sediments [37], A micro LC/ESI-ion trap MS method has been recently chosen as the official EPA (Environmental Protection Agency) method (8323) [38] it permits the determination of mono-, di-, and tri- butyltin, and mono-, di-, and tri-phenyltin at concentration levels of a subnanogram per liter and has been successfully applied in the analysis of freshwaters and fish [39], Tributyltin in waters has been also quantified through an automated sensitive SPME LC/ESI-MS method [40],... [Pg.539]

Importantly, neither arsenobetaine nor arsenocholine forms an arsine on treatment with borohydride solutions. Consequently, arsenobetaine and arsenocholine may remain undetected in samples, seawater for example, when arsines are generated and determined in an arsenic speciation analysis. The technique HPLC/ICP-MS is most suitable for the analysis of these (non-arsine-forming) compounds (49). Use of the highly sensitive ICP-MS detector allows application of small quantities of material to the chromatography column, thereby obviating possible sample matrix effects previously observed for arsenobetaine (50). [Pg.155]

J. M. Costa-Fernandez, F. Lunzer, R. Pereiro, N. Bordel and A. Sanz-Medel, Direct coupling of high-performance liquid chromatography to microwave-induced plasma atomic emission spectrometry via volatile-species generation and its application to mercury and arsenic speciation, J. Anal. At. Spectrom., 10, 1995, 1019-1025. [Pg.49]

J. A. Day, M. Montes-Baydn, A. P. Vonderheide, and J. A. Caruso, A Study of Method Robustness for Arsenic Speciation in Drinking Water Samples by Anion Exchange HPLC-ICP-MS, Anal. Bioanal. Chem. 2002,373, 664. [Pg.666]

Redman, A.D., Macalady, D.L. and Ahmann, D. (2002) Natural organic matter affects arsenic speciation and sorption onto hematite. Environmental Science and Technology, 36(13), 2889-96. [Pg.66]

Akter, K. and Naidu, R. (2006) Arsenic speciation in the environment, in Managing Arsenic in the Environment From Soil to Human Health (eds R. Naidu, E. Smith, G. Owens et al.), CSIRO Publishing, Collingwood, pp. 61-74. [Pg.199]

Bednar, A.J., Garbarino, J.R., Ranville, J.F. and Wildeman, T.R. (2005) Effects of iron on arsenic speciation and redox chemistry in acid mine water. Journal of Geochemical Exploration, 85(2), 55-62. [Pg.201]

Bowell, R.J., Morley, N.H. and Din, V.K. (1994) Arsenic speciation in soil porewaters from the Ashanti mine, Ghana. Applied Geochemistry, 9(1), 15-22. [Pg.202]

Culbertson, C.W., Moll, D.M., Backer, L.C. et al. (2002) A Pilot Study of Arsenic Speciation in Domestic Well-Water Supplies in Maine. Arsenic in New England A Multidisciplinary Scientific Conference, May 29-31,2002, National Institute of Environmental Health Sciences, Superfund Basic Research Program, Manchester, NH. [Pg.205]

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