2012
DOI: 10.1039/c2ja30222e
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Time-resolved LIBS of atomic and molecular carbon from coal in air, argon and helium

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Cited by 103 publications
(55 citation statements)
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“…Lucena et al [23] have compared experiments performed both in air and in helium atmospheres to evaluate the contribution of air in the LIB spectra. Laser ablation of coal sample in air, argon and helium atmospheres with time-resolved ns LIBS technique has been investigated by Dong et al [24]. They also compared CN and C 2 emissions from LIB spectra of several solid materials with different structures containing carbon and nitrogen in air and argon atmospheres [25].…”
Section: Introductionmentioning
confidence: 98%
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“…Lucena et al [23] have compared experiments performed both in air and in helium atmospheres to evaluate the contribution of air in the LIB spectra. Laser ablation of coal sample in air, argon and helium atmospheres with time-resolved ns LIBS technique has been investigated by Dong et al [24]. They also compared CN and C 2 emissions from LIB spectra of several solid materials with different structures containing carbon and nitrogen in air and argon atmospheres [25].…”
Section: Introductionmentioning
confidence: 98%
“…They demonstrated especially that the existence of such correlation allows potential applications for detection and identification of organic compounds. Moreover, some works [23][24][25][26] studied the influence of the ambient atmosphere of plasma on the CN and C 2 molecular emissions. Lucena et al [23] have compared experiments performed both in air and in helium atmospheres to evaluate the contribution of air in the LIB spectra.…”
Section: Introductionmentioning
confidence: 99%
“…Recent work in connection with laser ablation molecular isotopic spectrometry (LAMIS) [4] shows extensions of LIBS applications from exclusively elemental atomic spectra analysis to include molecular spectra as diagnostic tools. Laser ablation experiments with carbon-containing samples, such as coal [5,6], graphene [7], organic materials [8], or soil [9][10][11], can also reveal diatomic carbon Swan bands [12]. The determination of temperature is frequently of primary concern for description of the plasma and/or chemical state.…”
Section: Introductionmentioning
confidence: 99%
“…More recently, Aguilera et al [12] explored matrix effects in LIBS plasmas generated from various metallic samples that included Fe, Ni, Cu, and Al. A recent study by Dong et al [13] also explored the emission spectra from LIBS plasmas of coal in different gas environments, with the most intense lines observed when the sample was in an Ar atmosphere. One of the main goals of the work reported here is to provide a potential physics explanation of some of these matrix effects that have been reported.…”
Section: Introductionmentioning
confidence: 96%