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Article: Laser ablation mass removal versus incident power density during solid sampling for inductively coupled plasma atomic emission spectroscopy

TitleLaser ablation mass removal versus incident power density during solid sampling for inductively coupled plasma atomic emission spectroscopy
Authors
Issue Date1995
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/ac
Citation
Analytical Chemistry, 1995, v. 67 n. 24, p. 4522-4529 How to Cite?
AbstractFor laser ablation solid sampling, the quantity of material ablated (removed) influences the sensitivity of chemical analysis. The mass removal rate depends strongly on the laser power density, which is the main controllable parameter for a given material and wavelength parameter using laser solid sampling for inductively coupled plasma atomic emission spectroscopy (ICP-AES). For a wide variety of materials, a decrease in the rate of change, or roll-off, in mass removed is observed with increasing incident laser power density. The roll-off results from a change in the efficiency of material removed by the laser beam, primarily due to shielding of the target from the incident laser energy by a laser-vapor plume interaction. Several analytical technologies were employed to study the quantity of mass removed versus laser power density. Data for mass ablation behavior versus laser power density are reported using ICP-AES, atomic emission from a laser-induced plasma near the sample surface, acoustic stress power in the target, and measurements of crater volumes. This research demonstrates that the change in ICP-AES intensity with laser power density is due to changes in the mass removal. The roll-off in mass ablation is not due to a change in particle size distribution of the ablated species, fractionation of the sample, or a change in transport efficiency to the ICP torch. Accurate tracking of the ICP-AES with the laser ablation process justifies the use of internal and external standardization.
Persistent Identifierhttp://hdl.handle.net/10722/167314
ISSN
2015 Impact Factor: 5.886
2015 SCImago Journal Rankings: 2.369
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorShannon, MAen_US
dc.contributor.authorMao, XLen_US
dc.contributor.authorFernandez, Aen_US
dc.contributor.authorChan, WTen_US
dc.contributor.authorRusso, REen_US
dc.date.accessioned2012-10-08T03:05:33Z-
dc.date.available2012-10-08T03:05:33Z-
dc.date.issued1995en_US
dc.identifier.citationAnalytical Chemistry, 1995, v. 67 n. 24, p. 4522-4529en_US
dc.identifier.issn0003-2700en_US
dc.identifier.urihttp://hdl.handle.net/10722/167314-
dc.description.abstractFor laser ablation solid sampling, the quantity of material ablated (removed) influences the sensitivity of chemical analysis. The mass removal rate depends strongly on the laser power density, which is the main controllable parameter for a given material and wavelength parameter using laser solid sampling for inductively coupled plasma atomic emission spectroscopy (ICP-AES). For a wide variety of materials, a decrease in the rate of change, or roll-off, in mass removed is observed with increasing incident laser power density. The roll-off results from a change in the efficiency of material removed by the laser beam, primarily due to shielding of the target from the incident laser energy by a laser-vapor plume interaction. Several analytical technologies were employed to study the quantity of mass removed versus laser power density. Data for mass ablation behavior versus laser power density are reported using ICP-AES, atomic emission from a laser-induced plasma near the sample surface, acoustic stress power in the target, and measurements of crater volumes. This research demonstrates that the change in ICP-AES intensity with laser power density is due to changes in the mass removal. The roll-off in mass ablation is not due to a change in particle size distribution of the ablated species, fractionation of the sample, or a change in transport efficiency to the ICP torch. Accurate tracking of the ICP-AES with the laser ablation process justifies the use of internal and external standardization.en_US
dc.languageengen_US
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/acen_US
dc.relation.ispartofAnalytical Chemistryen_US
dc.titleLaser ablation mass removal versus incident power density during solid sampling for inductively coupled plasma atomic emission spectroscopyen_US
dc.typeArticleen_US
dc.identifier.emailChan, WT:wtchan@hku.hken_US
dc.identifier.authorityChan, WT=rp00668en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1021/ac00120a015-
dc.identifier.scopuseid_2-s2.0-0000990485en_US
dc.identifier.hkuros13836-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0000990485&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume67en_US
dc.identifier.issue24en_US
dc.identifier.spage4522en_US
dc.identifier.epage4529en_US
dc.identifier.isiWOS:A1995TK58500015-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridShannon, MA=7202548972en_US
dc.identifier.scopusauthoridMao, XL=7402841260en_US
dc.identifier.scopusauthoridFernandez, A=7403495178en_US
dc.identifier.scopusauthoridChan, WT=7403918827en_US
dc.identifier.scopusauthoridRusso, RE=7201443495en_US

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