Laser-induced breakdown spectroscopy – An emerging chemical sensor technology for real-time field-portable, geochemical, mineralogical, and environmental applications

Harmon, Russell S.; DeLucia, Frank C.; McManus, Catherine E.; McMillan, Nancy J.; Jenkins, Thomas F.; Walsh, Marianne E.; Miziolek, Andrzej W.

doi:10.1016/j.apgeochem.2006.02.003

Cited by 172 publications

(85 citation statements)

References 68 publications

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“…In LIBS, a pulsed laser beam is focused by a lens on the target material, of which a small volume is intensely heated and thus brought to a transient plasma state. With high temperature and high electron density, the plasma state, in which the sampled material is broken down, vaporized, atomized, and partially ionized, releases energy by emission of radiation across a broad spectral range between 200 and 980 nm [1]. The atomic and ionic spectra are obtained by means of a spectrograph, thereby allowing elemental components of the target to be identified and quantified.…”

Section: Introductionmentioning

confidence: 99%

“…Compared with other atomic emission spectral analysis techniques, the LIBS has many benefits, such as the capability of multi-element simultaneous analysis, applicability to all sample types like solids, liquids, and gases, less sample requirement, lack of sample preparation, and quickness of data acquisition. During the last two decades, the applications of LIBS have increased considerably, including industrial production control and quality assurance [3][4][5], environmental protection [1,[6][7][8], explorations of outer space [9], cultural heritage conservation [10], and medicinal studies [11].…”

Section: Introductionmentioning

confidence: 99%

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Correction of self-absorption effect in calibration-free laser-induced breakdown spectroscopy by an internal reference method

Sun

2009

Talanta

186

110

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Correction of self-absorption effect in calibration-free laser-induced breakdown spectroscopy by an internal reference method

Sun

2009

Talanta

186

110

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“…ARL has used LIBS for the detection of Halon alternative agents (19,20), tested a field-portable LIBS system for the detection of lead in soil and paint (10), studied the spectral emission of aluminum and aluminum oxide from bulk aluminum in different bath gases (21), performed kinetic modeling of LIBS plumes (22)(23)(24)(25), and demonstrated the detection and discrimination of geological materials (18,(26)(27)(28)(29)(30)(31), plastic landmines (32,33), explosives (34)(35)(36)(37)(38)(39)(40)(41)(42), and chemical and biological warfare agent surrogates (43)(44)(45)(46)(47). ARL has also published a number of reviews on LIBS (8,(48)(49)(50)(51)(52).…”

Section: Background/expertisementioning

confidence: 99%

Laser-Induced Breakdown Spectroscopy: Capabilities and Applications

Gottfried¹,

Lucia²

2010

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Approved for public release; distribution is unlimited.ii REPORT DOCUMENTATION PAGE Form Approved OMB No. 0704-0188Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing the burden, to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188), 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number.

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“…In recent years, the technique has been used for a wide variety of purposes (e.g., environmental monitoring, industrial process control and analysis of explosives, plant materials, geochemical and archaeological samples, etc.). [30][31][32][33][34][35][36][37] Vol. 20, No.…”

Section: Introductionmentioning

confidence: 99%

Gunshot residues: screening analysis by laser-induced breakdown spectroscopy

Silva¹,

Cortez²,

Pasquini³

et al. 2009

J. Braz. Chem. Soc.

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A espectroscopia de emissão em plasma induzido por laser (LIBS) foi avaliada para a detecção de resíduos de disparo de arma de fogo (GSR) nas mãos de um suspeito. Para desenvolver o procedimento, 114 amostras foram obtidas pressionando um pequeno pedaço de fita adesiva contra a região dorsal das mãos de não-atiradores, atiradores após o disparo e de atiradores após terem lavado as mãos com sabão e água. As fitas foram analisadas diretamente em um equipamento LIBS baseado em um policromador echelle com resolução temporal construído em laboratório. Os espectros foram obtidos a partir da aplicação de um único pulso de laser em 20 locações diferentes, espalhadas uniformemente sobre a superfície da fita, para assegurar uma amostragem eficiente na detecção de resíduos de disparo. Os espectros mostram uma assinatura com linhas de emissão características de bário e chumbo. Quando os dados espectrais foram submetidos à técnica de reconhecimento de padrão SIMCA (Modelagem Independente e Flexível por Analogia de Classe), atiradores e não-atiradores foram corretamente classificados. O método baseado em LIBS e SIMCA demonstrou ser não-destrutivo da evidência do crime e permitiu discriminar as amostras coletadas de voluntários não-atiradores e atiradores, mesmo após a lavagem das mãos.Laser induced breakdown spectroscopy (LIBS) is further developed for the detection of gunshot residue (GSR) on the hands of a suspected shooter. To develop the procedure, 114 samples were obtained by pressing a small piece of adhesive tape against the dorsal region of the hands of nonshooters, of shooters just after firing a weapon, and of shooters after washing their hands with soap and water. The tapes were analyzed directly in a time-resolved echelle based LIBS system, assembled in the laboratory, and 20 single laser pulses, spread uniformly on the tape surface, were shown to be enough to ensure the detection of true positives. The spectra obtained by LIBS from the tape present a signature with emission lines that are attributed to barium and lead. After the spectral data was submitted to a pattern recognition method SIMCA (Soft Independent Modeling of Class Analogy), shooters and non-shooters were corrected classified. The method based on LIBS and SIMCA has been demonstrated to be non-destructive of crime evidence and enabled discrimination between the samples collected from non-shooter volunteers and shooter volunteers before and after washing their hands.Keywords: laser-induced breakdown spectroscopy, gunshot residues, SIMCA, screening analysis, LIBS IntroductionGunshot residues (GSR) evidence has been considered essential during recent decades in forensic science as it makes it possible to determine if a suspect has fired, been in crime location or come into contact with a firearm.Despite the recent advances in the production of the so called clean ammunitions and well sealed guns, the use of cheap and widespread standard fire arms and propulsive charge remains associated with the majority of hand-armed crimes.1 At the moment of shooting ...

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Laser-induced breakdown spectroscopy – An emerging chemical sensor technology for real-time field-portable, geochemical, mineralogical, and environmental applications

Cited by 172 publications

References 68 publications

Correction of self-absorption effect in calibration-free laser-induced breakdown spectroscopy by an internal reference method

Correction of self-absorption effect in calibration-free laser-induced breakdown spectroscopy by an internal reference method

Laser-Induced Breakdown Spectroscopy: Capabilities and Applications

Gunshot residues: screening analysis by laser-induced breakdown spectroscopy

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