Space-resolved determination of the mineral nutrient content in tree-rings by X-ray fluorescence.
作者： Daigard Ricardo Ortega Rodriguez , Eduardo de Almeida , Mario Tomazello-Filho , Hudson Wallace Pereira de Carvalho
DOI: 10.1016/J.SCITOTENV.2019.134537
关键词:
摘要: Abstract X-ray fluorescence spectroscopy (XRF) offers rapid, multi-elemental, low cost and non-destructive elemental analysis. Different studies have used this technique to investigate distribution concentration of essential deleterious elements in vegetation. Special emphasis has been recently placed on the key aspects concerning sampling processes, laboratory protocols calibration methods for quantitative The aim present study was develop a methodology determine nutrient content Pinus taeda tree-rings by XRF. Using 1 mm excitation beam from Rh tube at 30 kV 600 μA, dwell time 20 s, we curves P, S, K, Ca, Mn Fe based multi-elemental standard addition using wood matrix 17-year-old trees. Satisfactory recoveries our XRF approach Mn, S K (
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