Liquid chromatography-hydride generation

M. Grotti, P. Rivaro and R. Frache, Determination of butyltin compounds by high-performance liquid chromatography-hydride generation-electrothermal atomisation atomic absorption spectrometry, J. Anal. At. Spectrom., 16(3), 2001, 270-274. [Pg.145]

Manning, B.A. and Martens, D.A. (1997) Speciation of arsenic(III) and arsenic(V) in sediment extracts by high- performance liquid chromatography-hydride generation atomic absorption spectrophotometry. Environmental Science and Technology, 31(1), 171-77. [Pg.345]

Rivaro, P., Zaratin, L., Frache, R. and Mazzucotelli, A. (1995) Determination of organotin compounds in marine mussel samples by using high-performance liquid chromatography-hydride generation inductively coupled plasma atomic emission spectrometry. Analyst, 120, 1937-1939. [Pg.400]

M. A. Lopez, M. M. Gomez, C. Camara, Determination of six arsenic species by high-performance liquid chromatography - hydride generation - atomic absorption spectrometry with on-line thermo-oxidation, Fresenius J. Anal. Chem, 346 (1993), 643-647. [Pg.493]

Vinas, P., Lopez-Garcia, I., Merino-Merofio, B., Campillo, N., Hemandez-Cordoba, M. Determination of selenium species in infant formulas and dietetic supplements using liquid chromatography-hydride generation atomic fluorescence spectrometry. Anal. Chim. Acta 535,49-56 (2005)... [Pg.235]

Sur, R., Dunemann, L. Method for the determination of five toxicologically relevant arsenic species in human urine by liquid chromatography - hydride generation atomic absorption spectrometry. J. Chromat. B 807, 169-176 (2004)... [Pg.362]

Lopez-Gonzalvez MA, Gomez MM, Camara C, et al. 1994. On-line microwave oxidation for the determination of organoarsenic compounds by high-performance liquid chromatography-hydride generation atomic absorption spectrometry. Journal of Analytical Atomic Spectrometry 9(3) 291-295. [Pg.625]

Figure 3.40 Schematic of an LC-HGAAS system (Reprinted from Analytica Chimica Acta, Niedzielski, P. The new concept of hyphenated analytical system Simultaneous determination of inorganic arsenic(lll), arsenic(V), selenium(IV) and selenium(VI) by high performance liquid chromatography-hydride generation-(fast sequential) atomic absorption spectrometry during single analysis, 55 (1-2), 199-206 T Copyright 2005 with permission from Elsevier).

Liquid chromatography/MS has also very recently been used for selenate and selenite determination and selenomethionine. And another recent liquid chromatographic hyphenated method, liquid chromatography-hydride generation atomic fluorescence spectrometry, has been used to determine selenite, selenate, selenocysteine, and selenomethionine in a single run. Reverse-phase and ion-exchange columns were used in series to accomplish the complex separation of all four of these analytes. And microchip capillary electrophoresis has most recently been used for determination of various Se-amino acids with negligible sample consumption . An excellent US Center for Disease Control summary of Se analytical methods is available. ... [Pg.701]

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]

Hydride Generation Atomic Absorption Spectrometry High Performance Liquid Chromatography High Performance Thin-Layer Chromatography High Resolution... [Pg.24]

The separation of mono-, di-, and tributyltin species in seawater by isocratic ion exchange liquid chromatography coupled to hydride generation AAS has been reported by Schulze and Lehmann [107]. Reported detection limits are 31,40, and 27 mol/1, respectively. [Pg.469]

B.6 Speciation of Arsenic Compounds by Ion-Exchange High-Performance Liquid Chromatography with Hydride Generation Atomic Fluorescence Detection. [Pg.173]

J. Gomez-Ariza, M.-A. Caro-de-la-Torre, I. Giraldez and E. Morales, Speciation analysis of selenium compounds in yeasts using pressurized liquid extraction and liquid chromatography-microwave-assisted digestion-hydride generation-atomic fluorescence spectrometry. Anal. Chim. Acta, 524(1-2), 2004, 305-314. [Pg.145]

Gas chromatography and high-performance liquid chromatography have both been combined with the introduction of hydride generation into inductively coupled plasma mass spectrometry for the speciation determination of arsenic in soils [36]. [Pg.32]

Olson, L.K., Vela, N.P. and Caruso, J.A. (1995) Hydride generation, electrothermal vaporisation and liquid-chromatography as sample introduction techniques for inductively-coupled plasma-mass spectrometry. Spectrochim. Acta B, 50, 1095-1108. [Pg.86]

Basic techniques for speciation analysis are typically composed of a succession of analytical steps, e.g. extraction either with organic solvents (e.g. toluene, dichloromethane) or different acids (e.g. acetic or hydrochloric acid), derivatisa-tion procedures (e.g. hydride generation, Grignard reactions), separation (gas chromatography (GC) or high-performance liquid chromatography (HPLC)), and detection by a wide variety of methods, e.g. atomic absorption spectrometry (AAS), mass spectrometry (MS), flame photometric detection (FPD), electron capture detection (ECD), etc. Each of these steps includes specific sources of error which have to be evaluated. [Pg.136]

Blais, J.-S., Momplaisir, G.-M. and Marshall, W.D. (1990) Determination of arsenobe-taine, arsenocholine and tetramethylarsonium cations by liquid chromatography-thermochemical hydride generation-atomic absorption spectrometry. Anal. Chem., 62, 1161-1166. [Pg.432]

Palacios, M.A., M. Gomez, C. Camara, and M.A. Lopez. 1997. Stability studies of arsenate, monomethyl-arsonate, dimethylarsinate, arsenobetaine and arsenocholine in deionized water, urine and clean-up dry residue from urine samples and determination by liquid chromatography with microwave-assisted oxidation-hydride generation atomic absorption spectrometric detection. Anal. Chim. Acta 340 209-220. [Pg.35]

High performance liquid chromatography coupled with hydride generation-direct current plasma emission spectrometry has been used for trace analysis and speciation studies of methylated organotin compounds in water [263],... [Pg.138]

Total tin was determined by continuous on-line hydride generation followed by direct current plasma emission spectroscopy. Interfacing the hydride generation-DC plasma emission spectrometric system with high performance liquid chromatography allowed the determination of tin species. Detection limits, sensitivities and calibration plots were determined. [Pg.139]

Blais et al. [268] determined arsenobetaine, arsenocholine and tetramethyl arsonium ion in non saline waters in amounts, respectively, down to 13.3, 14.5 and 7.8pg by a procedure based on liquid chromatography-thermochemical hydride generation atomic absorption spectrometiy. [Pg.139]

These workers showed that dissolved arsenic and antimony in natural waters can exist in die trivalent and pentavalent oxidation states, and the biochemical and geochemical reactivities of these elements are dependent upon their chemical forms. They developed a method for the simultaneous determination of arsenic (III)+antimony (III+V)+ antimony (III+V) that uses selective hydride generation, liquid nitrogen cooled trapping, and gas chromatography-photoionisation detection. The detection limit for arsenic is lOpmol L 1 while that for antimony is 3.3pmol L 1 precision (as relative standard deviation) for both elements is better than 3%. [Pg.362]

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