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Microanalytical Investigation of Xylem Sap of Cucumber by Total Reflection X-Ray Fluorescence Spectrometry

✍ Scribed by Gy. Záray; A. Varga; F. Fodor; E. Cseh

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
97 KB
Volume
55
Category
Article
ISSN
0026-265X

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✦ Synopsis

Concentrations of essential elements (K, Ca, Cu, Fe, Mn, Zn) and toxic lead in xylem fluid of cucumber plants growing in lead-free and lead-contaminated nutrient solutions were determined by total reflection X-ray fluorescence spectrometry. Amounts of essential elements transported in xylem during the bleeding period are lower by a factor of 1.1-1.4 for lead-contaminated plants with the exception of manganese. Its transport increases in the presence of lead contamination by a factor of 1.3. This observation was also confirmed by inductively coupled plasma atomic emission spectrometry of plant parts (leaves, stems) after their microwave dissolution.

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