Abstract

Laser induced breakdown spectroscopy (LIBS) in single pulse (SP) and double pulse (DP)configuration in collinear beam geometry at atmospheric air pressure was used to determinethe limit of detection (LOD) for the macronutrients Ca, Mg and P, the micronutrients Fe, Na,Mn and Zn and the trace elements Al, Cr, Cu and V in 26 samples of organic and inorganicfertilizers of different matrix composition. Inductively coupled plasma optical emissionspectroscopy (ICP-OES) was used as a reference technique. A comparative study wasperformed to optimize key parameters, such as excitation wavelength, delay time andinterpulse, for improving LIBS performance in the SP and DP configurations. Results show aconsiderable improvement in linear correlation between the DP LIBS signal and elementconcentration measured by ICP-OES compared to SP LIBS. LOD values obtained by DPLIBS increased up to five times as compared to SP LIBS. In general, LIBS results show amarked improvement in the simultaneous quantitative determination of various elements inorganic and inorganic fertilizers.

Autore Pugliese

• Senesi Giorgio Saverio

Tutti gli autori

• G. Nicolodelli; I. L. O. Perazzoli; B. S. Marangoni;; G. S. Senesi; P. C. Teixeira; V. M. Benites ; D.M. B. P. Milori

Titolo volume/Rivista

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Anno di pubblicazione

2015

ISSN

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ISBN

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Numero di citazioni Wos

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Numero di citazioni Scopus

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Settori ERC

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Codici ASJC

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