X-ray induced transport of inorganic elements in living rice leaves observed with X-ray fluorescence element mapping spectrometry.

Computer-controlled scanning electron microscopy (CCSEM) has been assessed for the determination of form and size distribution of heavy metals in urban contaminated soils. Metal distributions within individual particles were determined using X-ray element mapping. The sites selected for study were (1) around a landfill site, previously a colliery in Wolverhampton, UK and (2) a private garden adjacent to a railway in Nottingham, UK. Backscattered thresholding techniques were used to isolate the Pb-containing categories. The classification results for both Wolverhampton and Nottingham soils were generally similar but more Pb-containing classes were observed for the Nottingham samples when a comparison was made between results of the same size fractions. However, difficulties with the technique arose when particles showing chemically similar weathering crusts were assigned to the same class, despite having different internal compositions. The CCSEM data therefore need to be interpreted with caution and their application limited to situations in which particle internal complexity is not an issue.

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STUDIES ON DISTRIBUTION OF INORGANIC ELEMENTS IN URINARY STONES BY ELECTRON PROBE X-RAY MICROANALYSER

The Japanese Journal of Urology ◽

10.5980/jpnjurol1928.70.11_1245 ◽

1979 ◽

Vol 70 (11) ◽

pp. 1245-1254

Author(s):

Yukio Kimura

Keyword(s):

Electron Probe ◽

Urinary Stones ◽

Inorganic Elements ◽

X Ray

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X-Ray Fluorescence Analysis of a Gold Ibex and other Artifacts from Akrotiri

HNPS Proceedings ◽

10.12681/hnps.2224 ◽

2019 ◽

Vol 11 ◽

Author(s):

A. G. Karydas ◽

T. Pantazis ◽

C. Doumas ◽

A. Vlachopoulos ◽

P. Nomikos ◽

...

Keyword(s):

Bulk Composition ◽

Fluorescence Analysis ◽

Wall Painting ◽

Inorganic Elements ◽

X Ray ◽

Wide Range ◽

Soldering Technology ◽

Excavation Area

In-situ X-ray fluorescence analysis (XRF) of ancient artifacts from the excavation area was performed using a novel X-ray instrumentation, composed of a portable silicon PIN thermoelectrically cooled X-ray detector, a miniature X-ray source, and portable data acquisition devices. The main objective of the analyses in Akrotiri was to explore the potential of the technique to provide answers to a wide range of archaeometric questions regarding the bulk composition of metal alloys, especially of gold, the characterization of corrosion products in bronze artifacts, identification of inorganic elements which are fingerprints of the minerals used in wall-painting pigments, and of the painting materials and techniques used for the decoration of clay vase surfaces. Among the analysed artifacts are a unique gold ibex, a bronze dagger and blade, various pigments from the wall paintings of room 3 in Xeste 3, decoration pigments from rosettes of faience, a bichrome jug, and other clay vases. The results of the in-situ XRF survey, primarily those of the bulk composition and soldering technology of the gold ibex, are discussed and compared with literature.

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Elemental Analysis of Ginkgo Biloba Leaf Samples Collected during One Vegetation Period

Natural Product Communications ◽

10.1177/1934578x1300800831 ◽

2013 ◽

Vol 8 (8) ◽

pp. 1934578X1300800

Author(s):

Szilvia Czigle ◽

Erzsébet Háznagy-Radnai ◽

Klára Pintye-Hódi ◽

Jaroslav Tóth ◽

Daniela Tekel'ová ◽

...

Keyword(s):

Ginkgo Biloba ◽

Plant Material ◽

Fluorescence Analysis ◽

Vegetation Period ◽

Botanical Garden ◽

Inorganic Elements ◽

X Ray ◽

Female Tree ◽

Fallen Leaves ◽

Ginkgo Biloba Leaf

The object of our work was the identification and quantification of inorganic elements in Ginkgo biloba L. leaves (Ginkgonis folium, Ginkgoaceae) by X-ray fluorescence analysis. The plant material was obtained from a 50-years-old female tree at the Comenius University Botanical Garden (Bratislava, Slovakia). Leaves were collected from early May to late September, with the last sample consisting of fallen leaves. The elements analyzed were: phosphorus, sulfur, potassium, calcium, scandium, iron, zinc, yttrium, molybdenum, tellurium, samarium, gadolinium, dysprosium, iridium, thallium and lead. The amounts of the monitored heavy metals were below the limits specified in Ph. Eur. 7 and PhS 1.

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