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ELEMENTAL MAPPING OF A POST OAK LEAF USING A PROTON MICROPROBE

Ion Beam Modification and Analysis Laboratory, Department of Physics, P.O. Box 311427, University of North Texas, Denton, TX 76203-1427, USA

Current address: University of Michigan, Nuclear Engineering and Radiological Sciences, Room 120 NAME Building, 2600 Draper Road, Ann Arbor, Michigan 48109-2145.

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F. D. MCDANIEL

Ion Beam Modification and Analysis Laboratory, Department of Physics, P.O. Box 311427, University of North Texas, Denton, TX 76203-1427, USA

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J. L. DUGGAN

Ion Beam Modification and Analysis Laboratory, Department of Physics, P.O. Box 311427, University of North Texas, Denton, TX 76203-1427, USA

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B. C. BOLING

Department of Biology, P.O. Box 305220, University of North Texas, Denton, TX 76203-5220, USA

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, and

D. SMITH

Department of Biology, P.O. Box 305220, University of North Texas, Denton, TX 76203-5220, USA

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https://doi.org/10.1142/S012908350700123XCited by:1 (Source: Crossref)

Abstract

Elemental distributions in a post oak leaf was measured using the Particle-Induced X-ray Emission (PIXE) technique and a proton microbeam at energy of 3 MeV with spatial resolution of 10 μm. The elements detected in this sample were Mg, Al, Si, P, S, Cl, K, Ca, Cr, Mn, Fe, Cu, Zn, Br, Rb, and Sr. Among them, spatial differences in the distribution of nine elements were observed between the vascular and mesophyll tissue. Si, Cl, K, and Ca were mostly accumulated in vascular tissue, while Mg, P, S, Cr, and Mn were for the most part accumulated in the mesophyll. The distribution of Ca appeared to follow cell wall contours. The distribution of some of these elements is compared to the function of the elements in living tissue and future possibilities for this type of investigation are discussed.

Keywords:

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