Spectrometric analysis of process etching solutions of the photovoltaic industry—Determination of HNO3, HF, and H2SiF6 using high-resolution continuum source absorption spectrometry of diatomic molecules and atoms

Bücker, Stefan; Acker, Jörg

doi:10.1016/j.talanta.2012.03.052

Cited by 28 publications

(3 citation statements)

References 44 publications

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“…The selectivity of F determination is usually better than for other halogens, as it is known to create stronger bonds with metals [13]. Fluorine can form the following molecules that are stable in gaseous form: GaF [2,14], CaF [15,16], SrF [17,18] or AlF [19,20], which offer the possibility of generating specific monofluoride molecules for a given matrix. Although AlF, CaF and SrF are known to be more thermally stable [15,17,19] than GaF, the last one [14] has been shown to be preferred in fluorine determination by HR-CS GF MAS due to the better sensitivity with the support of tailored modifier compositions and robustness concerning interferences thanks to the high spectral resolution.…”

Section: Introductionmentioning

confidence: 99%

“…Among the main applications of HR-CS GF MAS for F determination, the analyses of water [17], soil [21], coal [22], milk [16], baby food [23], flour [24], tea [15], fish and seafood [25], eye shadow [26] and etching solutions from the photovoltaic industry [20] can be mentioned. In most of these applications Ca was used as a molecule-forming agent and only in some cases were Al or Sr also applied.…”

Section: Introductionmentioning

confidence: 99%

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An Improved Methodology for Determination of Fluorine in Biological Samples Using High-Resolution Molecular Absorption Spectrometry via Gallium Fluorine Formation in a Graphite Furnace

et al. 2021

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Nowadays growing attention is paid to the control of fluorine content in samples of biological origin as it is present in the form of various biologically active organic compounds. Due to the chemically-rich matrix of biological tissues, the determination of fluorine becomes a very difficult task. Furthermore, a required complex sample preparation procedure makes the determination of the low contents of F by ion chromatography UV-Vis or ion-selective electrodes not possible. High-resolution continuum source graphite furnace molecular absorption spectrometry (HR-CS GF MAS) seems to be the best option for this purpose due to its high robustness to matrix interferences, especially in the presence of carefully selected modifiers. In this work the possibility of quantitative F determination in water and animal tissues was examined by measuring the molecular absorption of gallium monofluoride (GaF) at 211.248 nm with the use of a commercially available HR-CS GF MAS system. Experimental conditions for the sensitive and precise determination of fluorine were optimized, including the time/temperature program as well as addition of gallium and modifier mixture in combined mode. Under these conditions the fluoride present in the sample was stabilized up to 600 °C, and the optimum vaporization temperature for GaF was 1540 °C. Palladium and zirconium deposited onto the graphite surface served as solid modifiers; sodium acetate and ruthenium modifiers were added directly to the sample. The limit of detection and the characteristic mass of the method were 0.43 μg/L and 8.7 pg, respectively. The proposed procedure was validated by the use of certified reference materials (CRMs) of lake water and animal tissue; the acceptable recovery was obtained, proving that it can be applied for samples with a similar matrix.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Improved Methodology for Determination of Fluorine in Biological Samples Using High-Resolution Molecular Absorption Spectrometry via Gallium Fluorine Formation in a Graphite Furnace

et al. 2021

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“…Ozbek and Akman [29] used the same molecule and wavelength for the determination of F in milk and waste water. Ozbek and Akman [30,31] also investigated the absorption of the SrF molecule at 651.187 nm and Bücker and Acker [32] investigated the absorption of the AlF molecule at 227.46 nm for the determination of F in process etching solutions.…”

Section: Introductionmentioning

confidence: 99%

Fluorine determination in coal using high-resolution graphite furnace molecular absorption spectrometry and direct solid sample analysis

Machado

Morés

Pereira

et al. 2015

Spectrochimica Acta Part B: Atomic Spectroscopy

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Progress in the determination of metalloids and non-metals by means of high-resolution continuum source atomic or molecular absorption spectrometry. A critical review

2013

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This work examines the new possibilities introduced with the arrival of commercially available high-resolution continuum source atomic absorption spectrometers for the determination of metalloids (B, Si, Ge, As, Se, Sb and Te) and non-metals (P, S, F, Cl, Br, I and N-based species), such as the improved potential to detect and correct for spectral overlaps and the strategies available to correct for matrix effects. In particular, and considering the increasing number of papers reporting on the use of molecular absorption spectrometry using graphite furnaces and flames as vaporizers, the work discusses in detail the advantages and limitations derived from the monitoring of molecular spectra from a practical point of view, in an attempt to guide future users of the technique.

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Spectrometric analysis of process etching solutions of the photovoltaic industry—Determination of HNO3, HF, and H2SiF6 using high-resolution continuum source absorption spectrometry of diatomic molecules and atoms

Cited by 28 publications

References 44 publications

An Improved Methodology for Determination of Fluorine in Biological Samples Using High-Resolution Molecular Absorption Spectrometry via Gallium Fluorine Formation in a Graphite Furnace

An Improved Methodology for Determination of Fluorine in Biological Samples Using High-Resolution Molecular Absorption Spectrometry via Gallium Fluorine Formation in a Graphite Furnace

Fluorine determination in coal using high-resolution graphite furnace molecular absorption spectrometry and direct solid sample analysis

Progress in the determination of metalloids and non-metals by means of high-resolution continuum source atomic or molecular absorption spectrometry. A critical review

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