Silicon determination via a SiO rotational line using high-resolution graphite furnace molecular absorption spectrometry: A straightforward approach for the analysis of solid samples prepared as suspensions

Enders, Michele S.P.; Coelho, Gilberto Silva; Pires, Leticia Z.; Borges, Daniel L. G.

doi:10.1016/j.sab.2021.106266

Cited by 3 publications

(5 citation statements)

References 17 publications

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“…Application of this correction method improved results for Pb in NIST SRMs 1570a (spinach leaves) from 0.350 AE 0.130 to 0.241 AE 0.068 mg kg −1 (reference value 0.2 mg kg −1 ). Although analyte oxide species are oen the source of interference in CS-ETAAS, they can sometimes be used to advantage as demonstrated in a method 160 for the determination of Si based on molecular absorption by SiO. This was successfully applied to the analysis of solid sample suspensions, including two soil and two sediment CRMs.…”

Section: Reference 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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Section: Reference 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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“…For example, Si can be quickly determined at a percentage level via a direct HR-CS GF MAS procedure if solid samples, difficult to dissolve, are prepared and analyzed as suspension. 20…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3][4][5][6] Nowadays, for some elements, two approaches are available as apart from the possibility of using AAS, HR-CS MAS methods were developed. [7][8][9][10][11][12][13][14][15][16][17][18][19][20] Phosphorus was determined via PO [7][8][9][10][11][12][13]15,16 or P 2 14 molecules, aluminum via AlF 17 or AlH 18 molecules and silicon via SiO molecules. 19,20 In the determinations, the HR-CS FMAS 7,8,[11][12][13]19 or the HR-CS GFMAS 9,10,[14][15][16][17][18]20 techniques were applied.…”

Section: Introductionmentioning

confidence: 99%

“…[7][8][9][10][11][12][13][14][15][16][17][18][19][20] Phosphorus was determined via PO [7][8][9][10][11][12][13]15,16 or P 2 14 molecules, aluminum via AlF 17 or AlH 18 molecules and silicon via SiO molecules. 19,20 In the determinations, the HR-CS FMAS 7,8,[11][12][13]19 or the HR-CS GFMAS 9,10,[14][15][16][17][18]20 techniques were applied.…”

Section: Introductionmentioning

confidence: 99%

“…For example, Si can be quickly determined at a percentage level via a direct HR-CS GF MAS procedure if solid samples, difficult to dissolve, are prepared and analyzed as suspension. 20 Generally, if the same analytical case is considered, the sensitivity and detectability of MAS analysis are worse than those of AAS analysis. The detection limit of P determination using graphite furnace techniques was 5 mg kg −1 in AAS and 20 mg kg −1 in MAS.…”

Section: Introductionmentioning

confidence: 99%

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Feasibility of high-resolution continuum source molecular absorption spectrometry for vanadium determination

Kowalewska

Abad

Okruss³

et al. 2023

J. Anal. At. Spectrom.

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Graphite Furnace Atomic Absorption Spectrometry

Borges

2022

Encyclopedia of Analytical Chemistry

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Atomic absorption spectrometry (AAS) enjoys excellent elemental selectivity and widespread usage with documented methodologies for a wide range of samples and matrices. Replacing the traditional flame atomizer with a graphite furnace (or ‘electrothermal atomizer (ETA)’) adds significantly to the flexibility of AAS and provides significantly lower detection limits. The basic principles of atomic absorption (AA) and the use of a graphite furnace as a means of generating the free atoms that are used in the spectrometric analysis are presented in this article. We must begin by understanding the basic chemical and physical transformations that occur from the moment a sample is placed on the graphite surface until the atomic vapors generated by heating of the graphite furnace diffuse from the tube and the absorption signal terminates. The path leading to the production of free gas‐phase atoms within the measurement volume within the graphite tube is a fascinating tale with many twists depending on sample and matrix. The chemical knowledge of various compounds has led to logical and innovative methodologies for particular analytes in specific matrices. All the efforts are in an attempt to permit interference‐free analyzes using simple aqueous standards in the preparation of calibration curves. Limits of detection in the parts per billion range (picogram, absolute), microsampling capabilities, and methods for solids and slurries analysis have made this a popular analytical technique for ultratrace metal analysis. Additional discussion on latest developments associated to electrothermal atomic absorption spectrometry (ETAAS), such as the possibility to monitor diatomic molecules for the quantification of nonmetals and the significant contribution posed by the use of high‐resolution (HR) instruments is available.

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Silicon determination via a SiO rotational line using high-resolution graphite furnace molecular absorption spectrometry: A straightforward approach for the analysis of solid samples prepared as suspensions

Cited by 3 publications

References 17 publications

Atomic spectrometry update – a review of advances in environmental analysis

Atomic spectrometry update – a review of advances in environmental analysis

Feasibility of high-resolution continuum source molecular absorption spectrometry for vanadium determination

Graphite Furnace Atomic Absorption Spectrometry

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