Energy-Dispersive X-ray Spectrometric Analysis of NBS Standard Reference Material 1571 Orchard Leaves After Oxidation and Borate Fusion

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An automated borate fusion procedure was investigated as a sample preparation method, after removal of organic matter, for the analysis of seven elements in NBS Standard Reference Material 1571 Orchard Leaves by energy-dispersive x-ray spectrometry. A 2.0 g sample was pretreated by oxidation with H2SO4—HNO3 acid mixture and the residue was fused with 6.5 g of lithium tetraborate in the conventional manner. Relative errors on the order of 2 to 10% were obtained for K, Ca, Fe, Mn, Zn, and Pb.

Keywords: Analysis, for botanical materials; Techniques, spectroscopic; X-ray fluorescence

Document Type: Research Article


Affiliations: Center for Analytical Chemistry, Gas and Particulate Science Division, National Bureau of Standards, Washington, DC 20234

Publication date: November 1, 1979

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