Simultaneous speciation of selenium and arsenic using elevated temperature liquid chromatography separation with inductively coupled plasma mass spectrometry detection

Le, X. Chris; Li, X.-F; Lai, Vivian; Ma, Meihu; Yalçın, Şerife; Feldmann, Jörg

doi:10.1016/s0584-8547(98)00105-0

Cited by 41 publications

(16 citation statements)

References 33 publications

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“…These elements can also be determined in the form of their volatile hydrides by using a type of sample introduction technique called hydride generation (HG) [1,2]. There is a great interest in the field of analytical chemistry in exploring the analytical capabilities of HG with respect to speciation analysis [3][4][5] and multi-element determinations [6,7] since its first use in 1968 by Holak [8].…”

Section: Introductionmentioning

confidence: 99%

Development of a continuous flow hydride generation laser-induced breakdown spectroscopic system: Determination of tin in aqueous environments

Ünal

Yalçın

2010

Spectrochimica Acta Part B: Atomic Spectroscopy

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The design, construction and optimization studies of a continuous flow hydride generation laser-induced breakdown spectroscopic system, HG-LIBS, for the determination of tin in aqueous environments is presented. Optimization of the Laser Induced Breakdown Spectroscopy (LIBS) signal with respect to carrier gas flow rate, analyte, acid (HCl) and reductant (NaBH 4 ) concentrations and flow rates was performed by using spectral emission intensity from the neutral Sn(I) line at 284.0 nm under atmospheric pressures. With flow rates of 5.0 mL/min for NaBH 4 and 2.5 mL/min for HCl, optimum NaBH 4 and HCl concentrations were determined as 2.0% (w/v) and 1.0% (v/v), respectively. The hydride generation efficiency of the system was tested for tin hydride, stannane (SnH 4 ), by inductively coupled plasma mass spectrometer (ICP-MS). It was found that higher than 99% of the analyte was released into the gaseous phase. Upon optimization, the minimum detectable Sn concentration was found as 0.3 mg/L in water samples. That corresponds to more than two orders of increase in sensitivity compared to methods that employ common sample introduction techniques in liquids analysis by LIBS. Over 90% recoveries were obtained from spiking experiments with river, tap and drinking water samples. Results illustrate potential use of the continuous flow HG-LIBS system for monitoring of Sn concentrations in aqueous environments.

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Section: Introductionmentioning

confidence: 99%

Development of a continuous flow hydride generation laser-induced breakdown spectroscopic system: Determination of tin in aqueous environments

Ünal

Yalçın

2010

Spectrochimica Acta Part B: Atomic Spectroscopy

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“…Some selected papers studying simultaneous multielemental speciation are listed in Table 2 [201][202][203][204][205]. Since selenium plays important roles in detoxification of both arsenic and mercury, much effort has been expended on the simultaneous speciation of both selenium and mercury species or both selenium and arsenic species by HPLC-ICP-MS [206][207][208]. Solvent extraction with NAA detection for different organohalogen species in biological samples like milk, human tissues, and pine needles has been studied [209][210][211][212][213].…”

Section: Structural Analysismentioning

confidence: 99%

Metallomics, elementomics, and analytical techniques

Chen

et al. 2008

Pure and Applied Chemistry

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Metallomics is an emerging and promising research field which has attracted more and more attention. However, the term itself might be restrictive. Therefore, the term "elementomics" is suggested to encompass the study of nonmetals as well. In this paper, the application of state-of-the-art analytical techniques with the capabilities of high-throughput quantification, distribution, speciation, identification, and structural characterization for metallomics and elementomics is critically reviewed. High-throughput quantification of multielements can be achieved by inductively coupled plasma-mass spectrometry (ICP-MS) and neutron activation analysis (NAA). High-throughput multielement distribution mapping can be performed by fluorescence-detecting techniques such as synchrotron radiation X-ray fluorescence (SR-XRF), XRF tomography, energy-dispersive X-ray (EDX), proton-induced Xray emission (PIXE), laser ablation (LA)-ICP-MS, and ion-detecting-based, secondary-ion mass spectrometry (SIMS), while Fourier transform-infrared (FT-IR) and Raman microspectroscopy are excellent tools for molecular mapping. All the techniques for metallome and elementome structural characterization are generally low-throughput, such as X-ray absorption spectroscopy (XAS), NMR, and small-angle X-ray spectroscopy (SAXS). If automation of arraying small samples, rapid data collection of multiple low-volume and -concentration samples together with data reduction and analysis are developed, high-throughput techniques will be available and in fact have partially been achieved.

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“…The isocratic elution mode and the low concentrations of organic solvent and dissolved solids in the mobile phases permit stable operation of the ICP with no degradation in sensitivity and little matrix interference. Both anion-pairing cations such as tetraethylammonium 101,103,244 or tetrabutylammonium 250,272 and cation-pairing anions such as pentanesulfonate, 269 hexanesulfonate, 244 heptanesulfonate 243,247 and dodecyl sulfonate 272,273 were used for this purpose. 271 A 1.5 cm C 18 guard column placed before the AE column was used to remove most of the organic components from urine that would otherwise bind irreversibly to the packing material.…”

Section: Separation Of Organoarsenic Compoundsmentioning

confidence: 99%

Bio-inorganic speciation analysis by hyphenated techniques

Szpunar

2000

Analyst

279

197

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International audienceThe state-of-the-art of species-selective analysis for trace metals and metalloids in biological materials by chromatographic and electrophoretic separation techniques with element selective detection is critically reviewed. The species of interest include organoarsenic, organoselenium and metal complexes with bioglands such as phytochelatins, metallothioneins, proteins and polysaccharides. The separation mechanisms discussed include size-exclusion, anion- and cation-exchange and reversed-phase HPLC and flatbed and capillary zone electrophoresis. Advantages and limitations of various element selective (e.g. AAS, ICP-AES and ICP-MS) and molecule specific (electrospray MS/MS) detection techniques used on- and off-line are discussed. The applications of coupled techniques to the analysis of biological materials are comprehensively reviewed in tabular form. Attention is paid to the sample preparation and sources of error in bioinorganic speciation analysis

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Simultaneous speciation of selenium and arsenic using elevated temperature liquid chromatography separation with inductively coupled plasma mass spectrometry detection

Cited by 41 publications

References 33 publications

Development of a continuous flow hydride generation laser-induced breakdown spectroscopic system: Determination of tin in aqueous environments

Development of a continuous flow hydride generation laser-induced breakdown spectroscopic system: Determination of tin in aqueous environments

Metallomics, elementomics, and analytical techniques

Bio-inorganic speciation analysis by hyphenated techniques

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