Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/25626
Type: Artigo de periódico
Title: Simple procedure for nutrient analysis of coffee plant with energy dispersive X-ray fluorescence spectrometry (EDXRF)
Author: Tezotto, Tiago
Favarin, José Laércio
Paula Neto, Ana
Gratão, Priscila Lupino
Azevedo, Ricardo Antunes
Mazzafera, Paulo
Abstract: Nutrient analysis is used to estimate nutrient content of crop plants to manage fertilizer application for sustained crop production. Direct solid analysis of agricultural and environmental samples by energy dispersive X-ray fluorescence spectrometry (EDXRF) was chosen as alternative technique to evaluate the simultaneous multielemental quantification of the most important essential elements in coffee (Coffea arabica L.) plants. Inductively coupled plasma atomic emission spectrometry and certified reference materials made from leaves were used to calibrate and check the trueness of EDXRF method for the determination of the concentration of several nutrients in coffee leaves and branches. Fluorescence spectrometry proved to be advantageous and presented low cost as loose powder samples could be used. Samples collected from a field experiment where coffee plants were treated with excess of Ni and Zn were used to verify the practical application of the method. Good relationships were achieved between certified values and data obtained by EDXRF, with recoveries ranging from 82 to 117 %.
Subject: Coffea arabica
metal toxicity
mineral nutrition
analytical procedure
Editor: São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"
Rights: aberto
Identifier DOI: 10.1590/S0103-90162013000400007
Address: http://dx.doi.org/10.1590/S0103-90162013000400007
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162013000400007
Date Issue: 1-Aug-2013
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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