Application of X-ray fluorescence spectrometry in assessment of environmental pollution

Markowicz, A.; Haselberger, N.; Dargie, M.; Tajani, A.; ., A. Tchantchane; Valković, V.; Danesi, P.R.

doi:10.1007/bf02039653

Cited by 20 publications

(5 citation statements)

References 6 publications

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“…Measurements of intermediate thickness samples using the emission-transmission method can be interesting for environmental ( Markowicz et al, 1996 ), geological ( Funtua, 1999 ), biological ( Funtua, 1999 ; Bamford et al, 2004 ; Bako et al, 2008 ), and drug ( Mahawatte et al, 2006 ) samples. In plant science, this method was applied to quantify the elements in healthy and fumagine infected orange and lemon leaves.…”

Section: Resultsmentioning

confidence: 99%

Laboratory Microprobe X-Ray Fluorescence in Plant Science: Emerging Applications and Case Studies

et al. 2018

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In vivo and micro chemical analytical methods have the potential to improve our understanding of plant metabolism and development. Benchtop microprobe X-ray fluorescence spectroscopy (μ-XRF) presents a huge potential for facing this challenge. Excitation beams of 30 μm and 1 mm in diameter were employed to address questions in seed technology, phytopathology, plant physiology, and bioremediation. Different elements were analyzed in several situations of agronomic interest: (i) Examples of μ-XRF yielding quantitative maps that reveal the spatial distribution of zinc in common beans (Phaseolus vulgaris) primed seeds. (ii) Chemical images daily recorded at a soybean leaf (Glycine max) infected by anthracnose showed that phosphorus, sulfur, and calcium trended to concentrate in the disease spot. (iii) In vivo measurements at the stem of P. vulgaris showed that under root exposure, manganese is absorbed and transported nearly 10-fold faster than iron. (iv) Quantitative maps showed that the lead distribution in a leaf of Eucalyptus hybrid was not homogenous, this element accumulated mainly in the leaf border and midrib, the lead hotspots reached up to 13,400 mg lead kg-1 fresh tissue weight. These case studies highlight the ability of μ-XRF in performing qualitative and quantitative elemental analysis of fresh and living plant tissues. Thus, it can probe dynamic biological phenomena non-destructively and in real time.

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Section: Resultsmentioning

confidence: 99%

Laboratory Microprobe X-Ray Fluorescence in Plant Science: Emerging Applications and Case Studies

et al. 2018

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“…nondestructive instrumental method for qualitative and quantitative analysis of chemical elements [1]. It is based on measurements of energies and intensities of the X-ray spectral lines emitted by secondary excitation of the elements of interest.…”

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confidence: 99%

Quality Assessment Statistic Evaluation of X-Ray Fluorescence via NIST and IAEA Standard Reference Materials

Ahmed¹,

Habbani²,

Mohd³

et al. 2017

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The aim of this study is a quality assessment of X-ray fluorescence laboratory located at the University of Khartoum. The X-ray fluorescence spectrometer system consists, a set of three 109 Cd sources of an initial nominal activity of 10 µCi, and Si(Li) detector Energy Dispersive XRF(EDXRF) systems. It is important to carry out this work because it has an effective contribution for a wide range of research and services. The assessment was carried out by measuring 8 NIST-2709a (soil) and 13 IAEA-155 (milk powder) standard reference material samples for repeatability examinations to test the measurement precision. The total combined standards uncertainty values for XRF lab were estimated by an error from repeatability measurements adding 2.6% for error propagation related to the method. For accuracy assessment, three standard statistic approaches were applied, i.e. the Bias %, zeta-score, and E n -number. The bias of all elements for both standard materials was found to be within a deviation range from −28% to 7.8%. The results of all elements for both the zeta-score test and E n -number have satisfactory results except Th (Thorium) and Zr (Zirconium) which consider as questionable results for NIST SRM 2709a and unsatisfactory results for E n -number.

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“…A análise multielementar e instrumental por fluorescência de raios X baseia-se na medida das intensidades dos raios X característicos emitidos pelos elementos químicos componentes da amostra, quando devidamente excitada, e vem sendo utilizada como um importante método analítico (NASCIMENTO FILHO, 1993, 1999. GRIEKEN, 1995;MARKOWICZ, et al, 1996;SIMABUCO, 1996. ).…”

Section: Fluorescência De Raios Xunclassified

Utilização da técnica de fluorescência de raios X por dispersão em energia (EDXRF) na avaliação do material particulado em suspensão na cidade de Limeira - SP

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Application of X-ray fluorescence spectrometry in assessment of environmental pollution

Cited by 20 publications

References 6 publications

Laboratory Microprobe X-Ray Fluorescence in Plant Science: Emerging Applications and Case Studies

Laboratory Microprobe X-Ray Fluorescence in Plant Science: Emerging Applications and Case Studies

Quality Assessment Statistic Evaluation of X-Ray Fluorescence via NIST and IAEA Standard Reference Materials

Utilização da técnica de fluorescência de raios X por dispersão em energia (EDXRF) na avaliação do material particulado em suspensão na cidade de Limeira - SP

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