Development of fast thermal programs in electrothermal atomic absorption spectrometry using hot injection and removal of the ashing stage for determination of heavy metals in sequential extracts from sediments

Filgueiras, Ana Virginia; Lavilla, Isela; Bendicho, Carlos

doi:10.1016/j.aca.2003.12.004

Cited by 7 publications

(3 citation statements)

References 18 publications

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“…The LOD for the Ni determination obtained in this work (0.33 µg L -1 ) is slightly better than that reported by Man-Chiang et al (13) in a multielemental ETAAS method for As, Mn, Co, and Ni in urine (0.35 µg L -1 ). For the three metals studied in a sediment matrix Filgueiras et al (19) reported worse detection limits than those obtained in the present paper.…”

Section: Combined Methods Optimizationcontrasting

confidence: 94%

Direct and Combined Methods for the Determination of Chromium, Copper, and Nickel in Honey by Electrothermal Atomic Absorption Spectroscopy

García

Herrero-Latorre

Martín

et al. 2005

J. Agric. Food Chem.

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In the present work, direct methods for the determination of chromium, copper, and nickel in honey by electrothermal atomic absorption spectroscopy were developed using experimental design as an optimization tool. Once the optimum conditions for the individual methods were established, a direct method for the combined determination of the three elements was optimized using the response surface tool. Palladium was used as chemical modifier in all cases. Honey was diluted in water, hydrogen peroxide, and nitric acid. Triton X-100 was added to minimize the matrix effect and the viscosity of the sample. The RSD (better than 10%) and the analytical recovery (98-103%) were acceptable for all of the developed methods. Calibration graphs were used in the four methods to determine the concentration of the analytes in the sample. The detection limits of the combined method (0.21, 0.35, and 0.37 microg L(-)(1) for Cr, Cu, and Ni, respectively) were similar to those obtained for the individual methods (LOD = 0.17, 0.21, 0.33 microg L(-)(1) for Cr, Cu, and Ni, respectively). The direct-combined proposed method has been applied to the determination of chromium, copper, and nickel content in representative honey samples from Galicia (northwestern Spain). The concentrations found in the analyzed samples were in the range of (5.75 +/- 0.64)-(26.4 +/- 0.38) ng g(-)(1) of Cr, (79 +/- 7.8)-(2049 +/- 80) ng g(-)(1) of Cu, and (12.6 +/- 1.36)-(172 +/- 6.88) ng g(-)(1) of Ni.

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Section: Combined Methods Optimizationcontrasting

confidence: 94%

Direct and Combined Methods for the Determination of Chromium, Copper, and Nickel in Honey by Electrothermal Atomic Absorption Spectroscopy

García

Herrero-Latorre

Martín

et al. 2005

J. Agric. Food Chem.

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“…Results were in agreement with those from a microwave total digestion procedure and good accuracy was achieved. The same authors described a similar technique for Ba, Mn and Sr. 99 Filgueiras et al 100 developed a fast thermal programme to be used in conjunction with the BCR 3-stage sequential extraction scheme and successfully determined Cr, Cu, Ni and Pb by ETAAS.…”

Section: Sample Dissolutionmentioning

confidence: 99%

Atomic spectrometry update. Environmental analysis

Butler

Cook

Harrington

et al. 2005

J. Anal. At. Spectrom.

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This is the twentieth annual review published in JAAS of the application of atomic spectrometry to the chemical analysis of environmental samples. In the analysis of air, there is ongoing development of instrumentation for continuous emission monitoring and as a means of interrogating the composition of individual airborne particulates. Developments in mass spectrometry applications continue to be an active area of research where the advantages of low detection limits and abilities to perform isotopic measurements are being exploited. There is growing interest in performing speciation measurements in water and this is being aided by the development of hyphenated techniques, most notably via the coupling of chromatographic systems to ICP-MS. Dominant themes in the analysis of soils include the optimization of preconcentration (and matrix separation) techniques, development of speciation protocols, notably arsenic and the increased use of portable XRF systems for in situ analysis. In geological analysis, laser ablation as an analytical tool is attracting a wider audience. Multi-collector ICP-MS is increasingly being used in a number of geological facilities to perform high precision isotope ratio measurements.

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“…However, direct determination of metal ions at trace levels is limited due to their low concentrations and matrix interference. 9 In trace analysis, to improve the detection limits, preconcentration/separation procedures such as solvent extraction, 10 co-precipitation, 10,11 cloud point extraction (CPE) 12 and solid phase extraction (SPE) 13 before instrumental determination of metal ions have been applied. Recently, some sample preparation methods such as solid-phase microextraction (SPME), 14 homogeneous liquidliquid extraction (HoLLE) 15 and single drop microextraction (SDME) 16 have been reported.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous determination of aluminum, copper, iron and zinc in Oscillatoria, Juncus littoralis tissues and wetland water samples by ultrasound-assisted emulsification-microextraction combined with ICP-OES

2011

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Development of fast thermal programs in electrothermal atomic absorption spectrometry using hot injection and removal of the ashing stage for determination of heavy metals in sequential extracts from sediments

Cited by 7 publications

References 18 publications

Direct and Combined Methods for the Determination of Chromium, Copper, and Nickel in Honey by Electrothermal Atomic Absorption Spectroscopy

Direct and Combined Methods for the Determination of Chromium, Copper, and Nickel in Honey by Electrothermal Atomic Absorption Spectroscopy

Atomic spectrometry update. Environmental analysis

Simultaneous determination of aluminum, copper, iron and zinc in Oscillatoria, Juncus littoralis tissues and wetland water samples by ultrasound-assisted emulsification-microextraction combined with ICP-OES

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