Publication detail

Improvement of the Laser-Induced Breakdown Spectroscopy method sensitivity by the usage of combination of Ag-nanoparticles and vacuum conditions

SLÁDKOVÁ, L. PROCHAZKA, D. POŘÍZKA, P. ŠKARKOVÁ, P. REMEŠOVÁ, M. HRDLIČKA, A. NOVOTNÝ, K. ČELKO, L. KAISER, J.

Original Title

Improvement of the Laser-Induced Breakdown Spectroscopy method sensitivity by the usage of combination of Ag-nanoparticles and vacuum conditions

Type

journal article in Web of Science

Language

English

Original Abstract

In this work we studied the effect of vacuum (low pressure) conditions on the behavior of laser-induced plasma (LIP) created on a sample surface covered with silver nanoparticles (Ag-NPs), i.e. Nanoparticles-Enhanced Laser-Induced Breakdown Spectroscopy (NELIBS) experiment in a vacuum. The focus was put on the step by step optimization of the measurement parameters, such as energy of the laser pulse, temporally resolved detection, ambient pressure, and different content of Ag-NPs applied on the sample surface. The measurement parameters were optimized in order to achieve the greatest enhancement represented as the signal-to-noise ratio (SNR) of NELIBS signal to the SNR of LIBS signal. The presence of NPs involved in the ablation process enhances LIP intensity; hence the improvement in the analytical sensitivity was yielded. A leaded brass standard was analyzed with the emphasis on the signal enhancement of Pb traces. We gained enhancement by a factor of four. Although the low pressure had no significant influence on the LIP signal enhancement compared to that under ambient conditions, the SNR values were noticeably improved with the implementation of the NPs.

Keywords

Laser-Induced Breakdown Spectroscopy; Silver nanoparticles; Low pressure conditions; Sensitivity improvement

Authors

SLÁDKOVÁ, L.; PROCHAZKA, D.; POŘÍZKA, P.; ŠKARKOVÁ, P.; REMEŠOVÁ, M.; HRDLIČKA, A.; NOVOTNÝ, K.; ČELKO, L.; KAISER, J.

Released

1. 1. 2017

Publisher

Elsevier

ISBN

0584-8547

Periodical

Spectrochimica Acta Part B

Number

127

State

United Kingdom of Great Britain and Northern Ireland

Pages from

48

Pages to

55

Pages count

8

URL

http://www.sciencedirect.com/science/article/pii/S0584854716303482

BibTex

@article{BUT129834,
  author="Lucia {Sládková} and David {Prochazka} and Pavel {Pořízka} and Pavlína {Modlitbová} and Michaela {Remešová} and Aleš {Hrdlička} and Karel {Novotný} and Ladislav {Čelko} and Jozef {Kaiser}",
  title="Improvement of the Laser-Induced Breakdown Spectroscopy method sensitivity by the usage of combination of Ag-nanoparticles and vacuum conditions",
  journal="Spectrochimica Acta Part B",
  year="2017",
  number="127",
  pages="48--55",
  doi="10.1016/j.sab.2016.11.005",
  issn="0584-8547",
  url="http://www.sciencedirect.com/science/article/pii/S0584854716303482"
}