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[INVITED] Signal and noise in Laser Induced Breakdown Spectroscopy: An introductory review

  Articoli su Riviste JCR/ISI  (anno 2016)

Autori:  Tognoni E., Cristoforetti G

Affiliazione Autori:  CNR, Istituto Nazionale di Ottica, Via G Moruzzi 1, I-56124 Pisa, Italy

Riassunto:  Laser Induced Breakdown Spectroscopy (LIBS) has become a very popular technique for elemental analysis thanks to its ease of use. However, LIBS users often report poor repeatability of the signal, due to shot-to-shot fluctuations, and consequent not satisfactory limits of detection. In many practical cases, these shortcomings are difficult to control because the signal is affected by several noise sources that cannot be reduced simultaneously. Hopefully, there is a large amount of knowledge, accumulated during several decades, that can provide guidelines to reduce the effect of the single sources of fluctuations. Experimental setup and measurement settings can be optimized on purpose. Spectral data can be processed in order to better exploit the information contained. In the current paper several approaches to improve the analytical figures-of-merit are reviewed and the respective advantages and drawbacks are discussed. (C) 2015 Elsevier Ltd. All rights reserved.

Volume n.:  79      Pagine da: 164  a: 172
DOI: 10.1016/j.optlastec.2015.12.010

*Impact Factor della Rivista: (2016) 2.109   *Citazioni: 28
data tratti da "WEB OF SCIENCE" (marchio registrato di Thomson Reuters) ed aggiornati a:  19/05/2019

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