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Separations 2018, 5(3), 36; https://doi.org/10.3390/separations5030036

Method Development of Phosphorus and Boron Determination in Fertilizers by ICP-AES

Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University, 54124 Thessaloniki, Greece
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Received: 14 May 2018 / Revised: 22 June 2018 / Accepted: 3 July 2018 / Published: 9 July 2018
(This article belongs to the Special Issue Research as Development Perspective)
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Abstract

Simultaneous determination of phosphorus and boron in fertilizers was performed by Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES). Three different samples were analyzed, of which two were inorganic and one was of organic composition. Analysis of the samples was performed after heated acidic digestion to completely dissolve them, using two different acid mixtures. A solution of HCl + HNO3 was used to digest the inorganic fertilizers, and a solution of H2SO4 + HNO3 for the organic fertilizer. The spectral emission lines used were 213.617 nm and 214.917 nm for P and 249.772 nm, 249.677 nm and 208.957 nm for B. The detection and quantification limits for P were between 10–20 mg/kg and 40–80 mg/kg respectively, while for B they ranged between 10–30 mg/kg and 40–100 mg/kg respectively. The repeatability of the technique was found to be within the range 0.9–17.0% for P and 1.7–23.4% for B, expressed as relative standard deviation (RSD). The concentrations found by the proposed method are in good agreement with those reported on their package labels. View Full-Text
Keywords: phosphorus; boron; inductively coupled plasma; atomic emission spectrometry; fertilizers; acid dissolution; wet digestion phosphorus; boron; inductively coupled plasma; atomic emission spectrometry; fertilizers; acid dissolution; wet digestion
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Viso, E.; Zachariadis, G. Method Development of Phosphorus and Boron Determination in Fertilizers by ICP-AES. Separations 2018, 5, 36.

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