Investigation of plasmas produced by laser ablation using single and double pulses for food analysis demonstrated by probing potato skins
We report on investigations of plasmas produced by laser ablation of fresh potatoes using infrared nanosecond laser radiation. A twin laser system consisting of two Nd:YAG oscillators was used to generate single or double pulses of adjustable interpulse delay. The potatoes were irradiated under ambi...
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| Veröffentlicht in: | Analytical and bioanalytical chemistry 2011-06, Vol.400 (7), p.2173-2183 |
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| creator | Beldjilali, S. Yip, W. L. Hermann, J. Baba-Hamed, T. Belasri, A. |
| description | We report on investigations of plasmas produced by laser ablation of fresh potatoes using infrared nanosecond laser radiation. A twin laser system consisting of two Nd:YAG oscillators was used to generate single or double pulses of adjustable interpulse delay. The potatoes were irradiated under ambient air with moderate pulse energies of about 10 mJ. The expansion dynamics of the ablation plume was characterized using fast imaging with a gated camera. In addition, time-resolved optical emission spectroscopy was applied to study the spectral line emission of the various plasma species. The electron density was deduced from Stark broadening, and the plasma temperature was inferred from the relative emission intensities of spectral lines. The relative concentrations of metals were estimated from the comparison of the measured emission spectra to the spectral radiance computed for a plasma in local thermal equilibrium. It is shown that the plasma produced by double pulses has a larger volume and a lower density. These properties lead to an increase of the signal-to-noise ratio by a factor of 2 and thus to an improved measurement sensitivity.
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Laser-induced breakdown spectroscopy for food analysis |
| doi_str_mv | 10.1007/s00216-011-4920-8 |
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Figure
Laser-induced breakdown spectroscopy for food analysis</description><identifier>ISSN: 1618-2642</identifier><identifier>EISSN: 1618-2650</identifier><identifier>DOI: 10.1007/s00216-011-4920-8</identifier><identifier>PMID: 21461618</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>Analytical Chemistry ; Biochemistry ; Characterization and Evaluation of Materials ; Chemistry ; Chemistry and Materials Science ; Density ; Dynamics ; Emission spectroscopy ; Engineering Sciences ; Exact sciences and technology ; Food Science ; Investigations ; Laboratory Medicine ; Laser ablation ; Lasers ; Monitoring/Environmental Analysis ; Nanostructure ; Optics ; Original Paper ; Photonic ; Plasmas ; Potatoes ; Spectral lines</subject><ispartof>Analytical and bioanalytical chemistry, 2011-06, Vol.400 (7), p.2173-2183</ispartof><rights>Springer-Verlag 2011</rights><rights>2015 INIST-CNRS</rights><rights>COPYRIGHT 2011 Springer</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c577t-73a1fda37544107d644639b5b09731b370123b87b66a0b3f4b1d0b71f97f51933</citedby><cites>FETCH-LOGICAL-c577t-73a1fda37544107d644639b5b09731b370123b87b66a0b3f4b1d0b71f97f51933</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00216-011-4920-8$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00216-011-4920-8$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>230,314,776,780,881,27903,27904,41467,42536,51298</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24235881$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21461618$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://hal.science/hal-01418619$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Beldjilali, S.</creatorcontrib><creatorcontrib>Yip, W. L.</creatorcontrib><creatorcontrib>Hermann, J.</creatorcontrib><creatorcontrib>Baba-Hamed, T.</creatorcontrib><creatorcontrib>Belasri, A.</creatorcontrib><title>Investigation of plasmas produced by laser ablation using single and double pulses for food analysis demonstrated by probing potato skins</title><title>Analytical and bioanalytical chemistry</title><addtitle>Anal Bioanal Chem</addtitle><addtitle>Anal Bioanal Chem</addtitle><description>We report on investigations of plasmas produced by laser ablation of fresh potatoes using infrared nanosecond laser radiation. A twin laser system consisting of two Nd:YAG oscillators was used to generate single or double pulses of adjustable interpulse delay. The potatoes were irradiated under ambient air with moderate pulse energies of about 10 mJ. The expansion dynamics of the ablation plume was characterized using fast imaging with a gated camera. In addition, time-resolved optical emission spectroscopy was applied to study the spectral line emission of the various plasma species. The electron density was deduced from Stark broadening, and the plasma temperature was inferred from the relative emission intensities of spectral lines. The relative concentrations of metals were estimated from the comparison of the measured emission spectra to the spectral radiance computed for a plasma in local thermal equilibrium. It is shown that the plasma produced by double pulses has a larger volume and a lower density. These properties lead to an increase of the signal-to-noise ratio by a factor of 2 and thus to an improved measurement sensitivity.
Figure
Laser-induced breakdown spectroscopy for food analysis</description><subject>Analytical Chemistry</subject><subject>Biochemistry</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Density</subject><subject>Dynamics</subject><subject>Emission spectroscopy</subject><subject>Engineering Sciences</subject><subject>Exact sciences and technology</subject><subject>Food Science</subject><subject>Investigations</subject><subject>Laboratory Medicine</subject><subject>Laser ablation</subject><subject>Lasers</subject><subject>Monitoring/Environmental Analysis</subject><subject>Nanostructure</subject><subject>Optics</subject><subject>Original Paper</subject><subject>Photonic</subject><subject>Plasmas</subject><subject>Potatoes</subject><subject>Spectral lines</subject><issn>1618-2642</issn><issn>1618-2650</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqFks9u1DAQxiMEoqXwAFyQLwg4pHhsx3-OqwpopZW4wNmyE3txydqLnVTaR-CtcZRluRVFSayZ3zczHn1N8xrwNWAsPhaMCfAWA7RMEdzKJ80lcJAt4R1-ej4zctG8KOUeY-gk8OfNBQHGl-Rl8_suPrgyhZ2ZQoooeXQYTdmbgg45DXPvBmSPqIZcRsaOKzWXEHdo-YwOmTigIc22Hg_zWFxBPuX6pqGmzHgsoaDB7VMsUzbTWq_WtkuJQ5rMlFD5GWJ52Tzzpupfnf5XzffPn77d3Lbbr1_ubjbbtu-EmFpBDfjBUNExBlgMnDFOle0sVoKCpQIDoVYKy7nBlnpmYcBWgFfCd6AovWo-rHV_mFEfctibfNTJBH272eolhoGB5KAeoLLvVrYO_Guue9L7UHo3jia6NBetQClSl939l5RcYiIYW_q_f5QELoBI2rGl_fWK7szodIg-1RX29an7DH2Kzoca31DVMYIVV1UAq6DPqZTs_PmCgPViGb1apt4R9GIZLavmzWme2e7dcFb89UgF3p4AU3oz-mxiH8o_jhHaSblMS1au1FTcuazv05yrBcoj3f8AFgLYCA</recordid><startdate>20110601</startdate><enddate>20110601</enddate><creator>Beldjilali, S.</creator><creator>Yip, W. 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The expansion dynamics of the ablation plume was characterized using fast imaging with a gated camera. In addition, time-resolved optical emission spectroscopy was applied to study the spectral line emission of the various plasma species. The electron density was deduced from Stark broadening, and the plasma temperature was inferred from the relative emission intensities of spectral lines. The relative concentrations of metals were estimated from the comparison of the measured emission spectra to the spectral radiance computed for a plasma in local thermal equilibrium. It is shown that the plasma produced by double pulses has a larger volume and a lower density. These properties lead to an increase of the signal-to-noise ratio by a factor of 2 and thus to an improved measurement sensitivity.
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| subjects | Analytical Chemistry Biochemistry Characterization and Evaluation of Materials Chemistry Chemistry and Materials Science Density Dynamics Emission spectroscopy Engineering Sciences Exact sciences and technology Food Science Investigations Laboratory Medicine Laser ablation Lasers Monitoring/Environmental Analysis Nanostructure Optics Original Paper Photonic Plasmas Potatoes Spectral lines |
| title | Investigation of plasmas produced by laser ablation using single and double pulses for food analysis demonstrated by probing potato skins |
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