A Review of Application of Total Reflection X-ray Fluorescence Spectrometry to Water Analysis

Pashkova, Galina V.; Ревенко, А. Г.

doi:10.1080/05704928.2015.1010205

Cited by 47 publications

(9 citation statements)

References 157 publications

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“…[ 20–23 ] A common application of TXRF is the analysis of liquids; however, different methods by TXRF have been proven to be adequate to use in analyses of environmental samples with previous chemical digestion such as water, wastewater, sediments, soils, particulate matter air filters, biomonitors, plants and algae. [ 15,18,20,24–27 ]…”

Section: Introductionmentioning

confidence: 99%

Multielemental analysis by total reflection X‐ray fluorescence spectrometry and phytochelatins determination in aquatic plants

et al. 2021

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Although heavy‐metal biomonitoring in aquatic environments has been traditionally based on chemical analyses, these do not reflect the impact on organisms; because of this, international environmental agencies have proposed the use of biomarkers. In this study Cr, Ni, Cu, Zn and Pb were bio‐monitored in different species of aquatic plants using Total Reflection X‐Ray Fluorescence (TXRF) spectrometry. The relation between each metal with phytochelatins (PCs) was also assessed in order to establish the use of PCs as biomarkers for water pollution contaminants. Samples of Lemna gibba, Myriophyllum heterophyllum, Arenaria paludicola, Hydrocotyle ranunculoides and Eichhornia crassipes collected in natural aquatic environment were analyzed. The results showed significant differences in metal concentration between species both in shoots and roots: Cr, Ni, Cu and Pb were greater in roots in the majority of samples; the maximum content of Pb (7.92 mg/kg) was found in roots of E. crassipes, Cr (7.54 mg/kg), Ni (5.96 mg/kg) in roots and Zn (64.10 mg/kg) and Cu (60.55 mg/kg) in shoots of H. ranunculoides, which showed the heaviest metal concentration. Glutathione (GSH) and the PCs concentrations were also ascertained. Differences between species and parts of the plants were also found, although the tendency was different as regards elemental concentration. Marked differences were detected in metal absorption and sensitivity to produce PCs of the aquatic plants. Pb was the metal with the least concentration in the plants, but, it was the only element that showed a direct correlation (p < 0.05, r > 0.9) with the PCs induction.

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Section: Introductionmentioning

confidence: 99%

Multielemental analysis by total reflection X‐ray fluorescence spectrometry and phytochelatins determination in aquatic plants

et al. 2021

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“…Therefore, in order to improve the quality of the results by TXRF, additional sample treatments (i.e. higher dilution factor, preconcentration) will be required as proposed in a previous review contribution dealing with the analysis of water samples by TXRF 19 .…”

Section: Analytical Capabilities Of 3pxrf Methods and Comparison With...mentioning

confidence: 99%

A simple and sustainable portable triaxial energy dispersive X-ray fluorescence method for in situ multielemental analysis of mining water samples

Pessanha

Marguí

Carvalho

et al. 2020

Spectrochimica Acta Part B: Atomic Spectroscopy

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“…The NaCl and MgSO 4 solutions were prepared with sodium chloride and magnesium sulfate heptahydrate powder both from Merck, with a purity ≥99.5%. The two different salts were chosen based on their abundance on Earth, , where the composition of natural waters is mainly controlled by hydrogeochemical processes, and predictions of their importance as constituents of fluids in asteroids . In addition, these salts are expected to have different solvation and water structuring properties. − The fluoranthene crystals used for the experiments are monoclinic with a columnar habit exhibiting large flat faces observable using a standard 10× magnification optical lens.…”

Section: Experimental Methodsmentioning

confidence: 99%

In Situ Nanoscale Investigation of Step Retreat on Fluoranthene Crystal Surfaces

Giese

Ende

et al. 2018

ACS Earth Space Chem.

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Fluoranthene, a polycyclic aromatic hydrocarbon, has been detected on Earth as well as in asteroids and meteorites and may have played a role in the formation of life. Increasing the ionic strength of aqueous solutions has been observed to lower the fluoranthene solubility, but it is unclear how solution composition controls the release rate of fluoranthene to an aqueous solution. To elucidate this, we performed in situ atomic force microscopy experiments in which we characterized the sublimation and dissolution behavior of fluoranthene crystal surfaces. From this, we quantify the step retreat rate upon exposure to air, deionized water, and a 0.4 M NaCl or 0.1 M MgSO4 solution. Surface roughness is the main factor that determines the dissolution or sublimation rate. The results imply that during fluoranthene remediation or breakdown in meteorites and asteroids, ionic strength will be more important than chemical composition for controlling fluoranthene release into solution.

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A Review of Application of Total Reflection X-ray Fluorescence Spectrometry to Water Analysis

Cited by 47 publications

References 157 publications

Multielemental analysis by total reflection X‐ray fluorescence spectrometry and phytochelatins determination in aquatic plants

Multielemental analysis by total reflection X‐ray fluorescence spectrometry and phytochelatins determination in aquatic plants

A simple and sustainable portable triaxial energy dispersive X-ray fluorescence method for in situ multielemental analysis of mining water samples

In Situ Nanoscale Investigation of Step Retreat on Fluoranthene Crystal Surfaces

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