Unveiling the identity of distant targets through advanced Raman-laser-induced breakdown spectroscopy data fusion strategies

Moros, Javier; Laserna, J.J.

doi:10.1016/j.talanta.2014.12.001

Cited by 34 publications

(22 citation statements)

References 25 publications

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“…Stand-off detection by hyphenated Raman-LIBS instruments is also possible, although multiple challenges have to be tackled: most importantly lower inherent sensitivity resulting from the small angle of detection, and increased interference caused by the open-field application and resulting in excessive noise in the Raman spectrum and increased background in the LIBS spectrum. Further information on the technical details and analytical applications of Raman-LIBS instruments can be found in a recent review by Lin [79], and on data-evaluation strategies in a paper by Moros and Laserna [80]. As is revealed by recent LIBS literature, the Raman-LIBS hyphenated instrument has already proved itself useful in several application fields.…”

Section: Raman-libsmentioning

confidence: 99%

A critical review of recent progress in analytical laser-induced breakdown spectroscopy

Galbács

2015

Anal Bioanal Chem

173

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Laser-induced breakdown spectroscopy (LIBS) has become an established analytical atomic spectrometry technique and is valued for its very compelling set of advantageous analytical and technical characteristics. It is a rapid, versatile, non-contact technique, which is capable of providing qualitative and quantitative analytical information for practically any sample, in a virtually non-destructive way, without any substantial sample preparation. The instrumentation is simple, robust, compact, and even enables remote analysis. This review attempts to give a critical overview of the diverse progress of the field, focusing on the results of the last five years. The advancement of LIBS instrumentation and data evaluation is discussed in detail and selected results of some prominent applications are also described.

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Section: Raman-libsmentioning

confidence: 99%

A critical review of recent progress in analytical laser-induced breakdown spectroscopy

Galbács

2015

Anal Bioanal Chem

173

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“…These are essentially the same instrumental requirements as those of LIBS, and both are often used together [118][119][120][121]. Very good signal-to-noise has been obtained for bulk explosive materials (tens of gram quantities) in single-shot [122] and multiple-pulse [123] spectra measured beyond 100 m in daylight conditions, and at 470 m for multiple-pulse measurement (1-10 s) during heavy rainfall [124,125].…”

Section: Ramanmentioning

confidence: 99%

“…Combining LIBS with Raman spectroscopy has increased the ability to identify unknown materials at stand-off distances through sensor-data fusion (Fig. 7 shows an example) [119,[193][194][195][196]. As high-energy lasers become more portable, the suitability of LIBS for use in the field is improving [168,184,197].…”

Section: Laser-induced Breakdown Spectroscopymentioning

confidence: 99%

Advances in explosives analysis—part II: photon and neutron methods

et al. 2015

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The number and capability of explosives detection and analysis methods have increased dramatically since publication of the Analytical and Bioanalytical Chemistry special issue devoted to Explosives Analysis [Moore DS, Goodpaster JV, Anal Bioanal Chem 395:245-246, 2009]. Here we review and critically evaluate the latest (the past five years) important advances in explosives detection, with details of the improvements over previous methods, and suggest possible avenues towards further advances in, e.g., stand-off distance, detection limit, selectivity, and penetration through camouflage or packaging. The review consists of two parts. Part I discussed methods based on animals, chemicals (including colorimetry, molecularly imprinted polymers, electrochemistry, and immunochemistry), ions (both ion-mobility spectrometry and mass spectrometry), and mechanical devices. This part, Part II, will review methods based on photons, from very energetic photons including X-rays and gamma rays down to the terahertz range, and neutrons.

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“…Raman spectroscopy was employed in this work without pretreatment, and the test speed was fast. The dynamic spectra of a sample could be collected rapidly when laser was applied as the micro‐perturbation, and only a few minutes were in demand of the total analysis process . Thirdly, the two‐dimensional correlation analysis results can show the characteristic of a sample in three‐dimensional space, so that people can realize the direct identification of the tested samples.…”

Section: Introductionmentioning

confidence: 99%

“…The dynamic spectra of a sample could be collected rapidly when laser was applied as the microperturbation, and only a few minutes were in demand of the total analysis process. [19] Thirdly, the two-dimensional correlation analysis results can show the characteristic of a sample in threedimensional space, so that people can realize the direct identification of the tested samples. The correlation coefficient method was applied to further analyze the results, which can calculate the correlation coefficient values between each sample and quantitative description of the similarities of them.…”

Section: Introductionmentioning

confidence: 99%

Laser perturbation two‐dimensional correlation Raman spectroscopy for quality control of bovine colostrum products

Zhang

Sha

Wang

2017

J Raman Spectroscopy

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In this paper, laser perturbation two‐dimensional correlation Raman spectroscopy was explored as a rapid and reliable determination method for the assessment of bovine colostrum products and their analogue, namely, milk powder. Compared with the traditional instrumental analytical methods, such as chromatography, Raman spectroscopy measurements can be realized easily without the need of sample preparation. Two‐dimensional correlation spectroscopy can enhance the spectral resolution and provide more useful information of samples. Laser perturbation technique is a new way, which has been developed in this work; additionally, only few minutes (<5 min) are in demand of the whole experiment process for one sample. Correlation coefficient method was employed to quantitatively analyze the similarities between bovine colostrum products and the other brands of milk powder that include bovine colostrum products containing some milk powder based on the developed two‐dimensional correlation Raman spectroscopy. The results showed that the correlation coefficients between each bovine colostrum product with their mean value could reach 0.991 ± 0.003, which indicated that there were high similarities between these products. Under the same experimental conditions, the correlation coefficients between the bovine colostrum product (mean) and the other brands of milk powder that include bovine colostrum products containing some milk powder were located in the range of 0.596–0.761, far below the 0.991 ± 0.003. Hence, these results clearly demonstrated the utility of the laser perturbation two‐dimensional correlation Raman spectroscopy combined with correlation coefficient as a rapid method for quality control of bovine colostrum products. Copyright © 2017 John Wiley & Sons, Ltd.

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Unveiling the identity of distant targets through advanced Raman-laser-induced breakdown spectroscopy data fusion strategies

Cited by 34 publications

References 25 publications

A critical review of recent progress in analytical laser-induced breakdown spectroscopy

A critical review of recent progress in analytical laser-induced breakdown spectroscopy

Advances in explosives analysis—part II: photon and neutron methods

Laser perturbation two‐dimensional correlation Raman spectroscopy for quality control of bovine colostrum products

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