A theoretical study of atmospheric propagation of laser and return light for stand-off laser induced breakdown spectroscopy purposes

Ferrero, Alejandro; Laserna, J.J.

doi:10.1016/j.sab.2007.11.020

Cited by 33 publications

(15 citation statements)

References 23 publications

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“…LIBS technology provides a rapid elemental analysis of solids, liquids or slurries, and gases [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. In LIBS technique, a strong laser pulse evaporates a small amount of material (typically a few micrograms) under test by creating a plasma plume.…”

Section: Methodsmentioning

confidence: 99%

Spectroscopic detection of health hazardous contaminants in lipstick using Laser Induced Breakdown Spectroscopy

Gondal

Seddigi

Nasr

et al. 2010

Journal of Hazardous Materials

177

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Section: Methodsmentioning

confidence: 99%

Spectroscopic detection of health hazardous contaminants in lipstick using Laser Induced Breakdown Spectroscopy

Gondal

Seddigi

Nasr

et al. 2010

Journal of Hazardous Materials

177

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“…This approach requires a high laser power density at the sample in order to generate useful laser-induced plasmas at long distance, and also for collecting the sufficient plasma light for analytical purposes. Both the laser radiation and the returning light from the plasma are transmitted through the atmosphere so the major problem associated with ST-LIBS is the attenuation of light [26]. The most important laser focusing systems in stand-off analysis of explosives are summarized in [27] demonstrated the capabilities of ST-LIBS for detection of energetic materials at distances of up to 45 m. The exercise was completed at the Yuma Probing Groung, an advanced test facility of the US Department of Defense in a desert region of South Arizona.…”

Section: Portable Libs Systemsmentioning

confidence: 99%

LIBS Detection of Explosives in Traces

Moros

Fortes

Vadillo

et al. 2014

Springer Series in Optical Sciences

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Laser-induced breakdown spectroscopy is one of the most exciting topics in the whole field of analytical science. Among the several expanding applications of LIBS, the analysis of explosives is gaining acceptance due to the unique capabilities of LIBS for inspection of distant samples, for recognition of materials behind a barrier or for identification of objects in motion, to name just a few examples. Although LIBS is a technique for elemental analysis, recent insights in the understanding of the chemistry of plasma plumes have boosted the use of LIBS for identification of organic compounds. In this chapter, the uses of LIBS for the detection, sorting and identity assignment of explosives is reviewed. The first section of this contribution is devoted to the fundamentals of explosive responses, with a discussion of the strong and weak points of LIBS for this application. The next section deals with the specific instrumentation used for laboratory and field work, from man-portable units to stand-off systems. A discussion on the several chemometric tools used for identification and sorting of explosives follows. Data fusion strategies for improving the distinction between harmless and explosive compounds are presented. Finally, a conclusions section outlines the current achievements and the future needs in this application.

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“…Very little work has been reported on detection of these hazardous pollutants in the leather samples using laserinduced breakdown spectroscopy (LIBS) (Jerschow et al 2001;Gondal et al 2007a, b;Gondal and Hussain 2007;Gondal and Siddiqui 2007;Hussain and Gondal 2008;Siddiqui et al 2008;Laserna 2005;Ferrero and Laserna 2008;Wu et al 2007;Giacomo et al 2007;Seong et al 2008;Shuya and Kazuaki 2007;Shaikh et al 2007), and this work is of its first kind on detection of various poisonous elements which exist in the full, half (wet blue), and natural hide/skin of animals. The basic principal of LIBS is based on the spectral analysis of radiation emitted from a plasma generated by focusing a high power pulsed laser beam on to the surface of the test sample.…”

Section: Introductionmentioning

confidence: 99%

“…The characteristic emission from plasma provides information about the elements present in the target material. The unique features of LIBS (Jerschow et al 2001;Gondal et al 2007a, b;Gondal and Hussain 2007;Gondal and Siddiqui 2007;Hussain and Gondal 2008;Siddiqui et al 2008;Laserna 2005;Ferrero and Laserna 2008;Wu 2007;Giacomo et al 2007;Seong et al 2008;Shuya and Kazuaki 2007;Shaikh et al 2007) technique are that it requires no sample preparation and is capable of remote and in situ analysis of materials in any phase (solid, liquid, or gas). This is in contrast with conventional analytical techniques that require time-consuming sample preparation and can be employed only in well-equipped laboratory.…”

Section: Introductionmentioning

confidence: 99%

Detection of hazardous pollutants in chrome-tanned leather using locally developed laser-induced breakdown spectrometer

Nasr

Gondal

Seddigi

2010

Environ Monit Assess

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Highly toxic contaminants like Cr, As, and Pb were detected in chrome-tanning process of animal skin to produce leather by applying locally developed laser-induced breakdown spectrometer. An Nd-YAG laser with 1,064 nm wavelength was focused on the surface of leather samples (natural and manufactured) to generate a plasma spark and spectrally resolved spectra were used for identification and quantification of contaminants. The leather samples were collected from a tannery located in industrial cities of Riyadh and Jeddah, Saudi Arabia. The study was carried out on fully, half manufactured (wet blue leather), and natural hide (skin). To the best of our knowledge, this is the first attempt where laser-induced breakdown spectroscopy (LIBS) technique has been applied for the analysis of leather before and after tanning process. The maximum concentration of different elements of environmental significance like chromium, lead, arsenic, sulfur, magnesium were 199, 289, 31, 38, and 39 ppm, respectively, in one of the manufactured leather samples. The limit of detection (LOD) of our LIBS system for chromium, lead, arsenic, sulfur, and magnesium were 2, 3, 1.5,7, and 3 ppm, respectively. The safe permissible limit for tanned leather for highly toxic elements like chromium, lead, and arsenic are 1, 0.5, 0.01 ppm, respectively, as prescribed in Environmental Regulation Standards for Saudi Industries set by Royal Commission Jubail, Saudi Arabia. The LIBS technique is superior to other conventional techniques like ICP or atomic absorption that a little or no sample preparation is required, no chemicals are needed, multi-elemental analysis is possible for all kinds of samples (natural and anthropogenic materials), microgram of sample is essential, and LIBS could be applied for remote analysis. It is highly selective and sensitivity higher than ICP, and as no sample and chemicals are required, it is cost effective for multi-sample analysis per unit time as compared with other conventional techniques. The concentration of some toxic elements (Cr, Pb, As) is much higher than the safe permissible limits set by Occupational Safety and Health Administration in USA or Saudi environmental regulatory agencies. Results obtained with our LIBS systems were in close agreement with the results obtained using other standard analytical technique such as the inductively coupled plasma atomic emission spectroscopy.

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A theoretical study of atmospheric propagation of laser and return light for stand-off laser induced breakdown spectroscopy purposes

Cited by 33 publications

References 23 publications

Spectroscopic detection of health hazardous contaminants in lipstick using Laser Induced Breakdown Spectroscopy

Spectroscopic detection of health hazardous contaminants in lipstick using Laser Induced Breakdown Spectroscopy

LIBS Detection of Explosives in Traces

Detection of hazardous pollutants in chrome-tanned leather using locally developed laser-induced breakdown spectrometer

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