Ultra-Trace Determination of Arsenic by Platinum-Coated Tungsten Coil Hydride Generation (HG) Atomic Absorption Spectrometry (AAS)

Yıldız, Dilek; Atasoy, Muhammet; Demirak, Ahmet

doi:10.1080/00032719.2022.2071913

Cited by 6 publications

(3 citation statements)

References 19 publications

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“…The determination of As III by FAAS with a quartz tube atomiser was improved 76 by using a Pt-coated tungsten coil heated at 60 °C to trap arsine gas after HG. The LOD of 0.016 μg L −1 was a considerable improvement over that (0.26 μg L −1 ) achievable without the coil.…”

Section: Water Analysismentioning

confidence: 99%

“…Use of a novel platinum-coated tungsten coil atom trap improved 76 sensitivity for the determination of As by over an order of magnitude relative to conventional HG-AAS. The LOD was 0.016 μg L −1 for a trapping time of 90 s. Although primarily intended for use in (potable) water analysis, the method was tested with Supelco CRM 023 (sandy loam 7) for which the result of 375 ± 3.8 mg kg −1 agreed with the certified value of 380 ± 6.7 mg kg −1 .…”

Section: Analysis Of Soils Plants and Related Materialsmentioning

confidence: 99%

See 1 more Smart Citation

Atomic spectrometry update – a review of advances in environmental analysis

Bacon

Butler

Cairns

et al. 2023

J. Anal. At. Spectrom.

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Section: Water Analysismentioning

confidence: 99%

Section: Analysis Of Soils Plants and Related Materialsmentioning

confidence: 99%

Atomic spectrometry update – a review of advances in environmental analysis

Bacon

Butler

Cairns

et al. 2023

J. Anal. At. Spectrom.

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show abstract

“…To improve the sensitivity and hence LOD for the determination of As by HG-AAS , Yildiz et al 125 trapped the arsine, originally generated by reaction with BH in acid solution, at 60 °C on a platinum-coated tungsten coil. The As was then released, by heating to 950 °C, and transported to a flame-heated quartz tube atom cell for quantification by AAS.…”

Section: Progress With Analytical Techniquesmentioning

confidence: 99%

Atomic spectrometry update: review of advances in the analysis of clinical and biological materials, foods and beverages

Patriarca

Barlow

Cross³

et al. 2023

J. Anal. At. Spectrom.

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Novel Technique for Ultra‐Trace Determination of Lead in Seawater Samples Using Gold Coated Tungsten Coil Atom Trap Hydride Generation Atomic Absorption Spectrometry

Atasoy

2024

ChemistrySelect

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A novel and simple trap technique combining a gold‐coated tungsten coil with hydride generation atomic absorption spectrometry (HGAAS) were developed for ultra‐trace lead determination. The technique was based on first transporting the plumbane produced by the HG system, together with H2, to a trap externally heated to 92 °C, where it was collected for in‐situ preconcentration and then volatilized by raising the trap temperature to 510 °C. For a 120 s trapping time, the limit of detection (LOD) was 2.9 ng L−1, the limit of quantification (LOQ) was 9.7 ng L−1 and the relative standard deviation was 3.1 % (at 0.02 μg L−1). The analytical performance of the technique was contrasted against the classical HGAAS method and a 39.2‐fold increase in sensitivity was obtained when comparing the characteristic concentrations of both methodologies. The morphology of the trap surface was also studied using scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The accuracy of the proposed method was verified by analyzing the Pb concentration in the certified reference materials and the results agreed well with the certified values. Finally, the developed procedure was successfully applied to seawater samples and the recoveries of standard addition were between 102.4 % and 105.2 %.

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Ultra-Trace Determination of Arsenic by Platinum-Coated Tungsten Coil Hydride Generation (HG) Atomic Absorption Spectrometry (AAS)

Cited by 6 publications

References 19 publications

Atomic spectrometry update – a review of advances in environmental analysis

Atomic spectrometry update – a review of advances in environmental analysis

Atomic spectrometry update: review of advances in the analysis of clinical and biological materials, foods and beverages

Novel Technique for Ultra‐Trace Determination of Lead in Seawater Samples Using Gold Coated Tungsten Coil Atom Trap Hydride Generation Atomic Absorption Spectrometry

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