Study of the processes of background formation in the long-wavelength region of X-Ray spectrum

Чупарина, Е. В.; Smagunova, A. N.; Eliseeva, L. A.

doi:10.1134/s1061934815080055

Cited by 4 publications

(3 citation statements)

References 10 publications

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“…XRF is a non-destructive and multi-element technique, which has been widely used towards the qualitative and quantitative determination of metals in vegetal materials. 1,10,11 In WD-XRF, following irradiation of the sample using a standard X-ray source, the characteristic radiation emitted by the sample is separated into wavelengths using a diffraction device. In SR-XRF the energy of the incident photon beam can be tuned as to take full advantage of the energy dependence of the photoexcitation cross section thus increasing the sensitivity of the method.…”

Section: Methodsmentioning

confidence: 99%

“…Although plants are composed mainly (around 98%) of low atomic number elements (carbon, hydrogen, nitrogen, and oxygen), metals and trace elements, which are obtained primarily from the soil through the roots, play a decisive role in the plant metabolism. 1,2 The mineral nutrient and trace elements content (the ionome) present an intimate connection with plant's physiology. 3,4 With the exception of carbon and oxygen, the majority of the elements that make up a plant are obtained from the soil through complex processes related to plant-environment interactions.…”

Section: Introductionmentioning

confidence: 99%

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Elemental Concentration and Sulfur Chemical Speciation in the Amazonian Plant Andira surinamensis Using Synchrotron Radiation Techniques (SR-XRF, XANES), RBS and WD-XRF

Gonzalez¹,

Simões²,

Bernini³

et al. 2019

J. Braz. Chem. Soc.

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The inorganic composition of the bark and leaf of a plant from the Amazon rainforest, Andira surinamensis, was determined using two non-destructive, multi-element techniques: X-ray fluorescence (XRF) and Rutherford backscattering spectrometry (RBS). XRF measurements were made using both a conventional X-ray source and synchrotron radiation. It was observed that although magnesium, aluminum, silicon, phosphorus, sulfur, chlorine, and potassium are present in higher concentrations in the leaf, calcium is about three times more concentrated in the bark. Manganese, iron, copper, zinc, strontium and barium were also detected, with barium showing a concentration above the minimum toxicity level for plants. Chemical speciation of sulfur, performed using the X-ray absorption near edge structure (XANES) technique, showed that sulfur is present in several oxidation states, with a much larger contribution from the inorganic sulfate in the leaves. The article evidences that the combined use of synchrotron radiation and non-destructive multielement techniques allows for an efficient and accurate determination of the inorganic composition and chemical speciation in plants.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Elemental Concentration and Sulfur Chemical Speciation in the Amazonian Plant Andira surinamensis Using Synchrotron Radiation Techniques (SR-XRF, XANES), RBS and WD-XRF

Gonzalez¹,

Simões²,

Bernini³

et al. 2019

J. Braz. Chem. Soc.

View full text Add to dashboard Cite

show abstract

“…Chuparina and co-workers 116 reported a comprehensive study of the spectrum background resulting from instrument and matrix effects in WDXRF measurements for nine low Z elements in plant material samples. Synthetic samples were prepared using simple compounds mixed with pure cellulose then formed into pressed pellets on a boric acid backing and measured using a conventional, commercially available WDXRF spectrometer operated under typical conditions for low Z element measurements.…”

Section: Quantication and Data Processingmentioning

confidence: 99%

2016 Atomic Spectrometry Update – a review of advances in X-ray fluorescence spectrometry and its applications

West¹,

Ellis

Potts

et al. 2016

J. Anal. At. Spectrom.

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Atomic spectrometry update – a review of advances in environmental analysis

Butler

Cairns

Cook

et al. 2017

J. Anal. At. Spectrom.

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This is the 29th annual review of the application of atomic spectrometry to the chemical analysis of environmental samples. This Update refers to papers published approximately between September 2012 and July 2013 and continues the series ofAtomic Spectrometry Updates (ASUs) Developments in geochemical analysis included the production and (re)certification of new geological RMs for bulk, isotopic and microspatial analysis. Optimisation of LA-ICP-MS techniques for the interrogation of geochemical samples continues to be reported and a number of useful instrumental review articles (AMS, ICP-MS and SIMS) have been published.Feedback on this review is most welcome and the review coordinator can be contacted using the email address provided. Sampling techniquesThe development of personal workplace air samplers, used to monitor workers' exposure to airborne particles, continues to be a fertile area of research. cartridge assembly which could then be loaded directly into an XRF system for analysis. Initial wind tunnel tests using test aerosols of known particle size indicated that this sampler could collect representative particle size distributions.Generation of test particle atmospheres in a laboratory environment is difficult and it is most informative to see publications describing the development and validation of aerosol test chambers. A system 21 for source characterisation and controlled human exposure to NPs generated during gas-metal arc welding had an airtight 22 m 3 climate-controlled stainless steel chamber at its core. A variety of online measurements, e.g. using TEOM or SMPS, and offline measurements, e.g. using electron microscopy and PIXE techniques, could be made via sampling ports/samplers. Test particles were generated in a separate chamber and subsequently piped into the main chamber. Stable concentrations of atmospheric particles could be maintained for up to 6 h and concentrations could be varied from <5 µg m by EDXRF spectrometry (Cr, Cu, Fe, Ni, Pb and Zn), there were no significant differences in values between the two measurement approaches (paired t-test, p > 0.2, 95 % CI). In summary, the authors concluded that this method was suitable for the high throughput analysis of lightly loaded air filter samples. 11The bioaccessible metal fraction in urban aerosol particles may be a more informative metric than the total metal composition in assessng the potential health effects of exposure to inhaled particles. . Using this optimised method, the airborne levels of Ag in Buenos Aires was determined to be 2-4.5 ng m , respectively. Emission spectroscopyInvestigation into the use of LIBS for the analysis of aerosol samples is a focus of a number of research groups. Elemental emission intensities were normalised to carbon (measured at 247.856 nm) which could be used as an internal standard because the carbon emission from the underlying nylon filter was much larger and relatively more stable than the signal from the deposited carbonaceous particles. This approach was useful for minimising shot-to-...

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Study of the processes of background formation in the long-wavelength region of X-Ray spectrum

Cited by 4 publications

References 10 publications

Elemental Concentration and Sulfur Chemical Speciation in the Amazonian Plant Andira surinamensis Using Synchrotron Radiation Techniques (SR-XRF, XANES), RBS and WD-XRF

Elemental Concentration and Sulfur Chemical Speciation in the Amazonian Plant Andira surinamensis Using Synchrotron Radiation Techniques (SR-XRF, XANES), RBS and WD-XRF

2016 Atomic Spectrometry Update – a review of advances in X-ray fluorescence spectrometry and its applications

Atomic spectrometry update – a review of advances in environmental analysis

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