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Article: Influence of gas environment on picosecond laser ablation sampling efficiency and ICP conditions

TitleInfluence of gas environment on picosecond laser ablation sampling efficiency and ICP conditions
Authors
Issue Date1998
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/ac
Citation
Analytical Chemistry, 1998, v. 70 n. 22, p. 4709-4716 How to Cite?
AbstractThe effects of gas atmosphere on inductively coupled plasma excitation characteristics and picosecond laser ablation sampling are studied for enhancing atomic emission spectroscopy sensitivity. Five noble gases (He, Ne, Ar, Kr, Xe) were used in the laser ablation sampling chamber. The noble gases significantly influence the ICP excitation characteristics and the laser ablation sampling efficiency. There is an enhancement in ICP emission intensity for laser sampling in He and Ne and a decrease for Kr and Xe relative to Ar. Plasma shielding is a possible mechanism to explain the gas effects, as the behavior of laser sampling correlates with the ionization potential of the gas. The significant improvement in AES using He as the sample chamber gas is beneficial to chemical analysis, especially for trace analysis, which requires high sensitivity. | The effects of gas atmosphere on inductively coupled plasma excitation characteristics and picosecond laser ablation sampling are studied for enhancing atomic emission spectroscopy sensitivity. Five noble gases (He, Ne, Ar, Kr, Xe) were used in the laser ablation sampling chamber. The noble gases significantly influence the ICP excitation characteristics and the laser ablation sampling efficiency. There is an enhancement in ICP emission intensity for laser sampling in He and Ne and a decrease for Kr and Xe relative to Ar. Plasma shielding is a possible mechanism to explain the gas effects, as the behavior of laser sampling correlates with the ionization potential of the gas. The significant improvement in AES using He as the sample chamber gas is beneficial to chemical analysis, especially for trace analysis, which requires high sensitivity.
Persistent Identifierhttp://hdl.handle.net/10722/70275
ISSN
2015 Impact Factor: 5.886
2015 SCImago Journal Rankings: 2.369
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLeung, APKen_HK
dc.contributor.authorChan, WTen_HK
dc.contributor.authorMao, XLen_HK
dc.contributor.authorRusso, REen_HK
dc.date.accessioned2010-09-06T06:21:21Z-
dc.date.available2010-09-06T06:21:21Z-
dc.date.issued1998en_HK
dc.identifier.citationAnalytical Chemistry, 1998, v. 70 n. 22, p. 4709-4716en_HK
dc.identifier.issn0003-2700en_HK
dc.identifier.urihttp://hdl.handle.net/10722/70275-
dc.description.abstractThe effects of gas atmosphere on inductively coupled plasma excitation characteristics and picosecond laser ablation sampling are studied for enhancing atomic emission spectroscopy sensitivity. Five noble gases (He, Ne, Ar, Kr, Xe) were used in the laser ablation sampling chamber. The noble gases significantly influence the ICP excitation characteristics and the laser ablation sampling efficiency. There is an enhancement in ICP emission intensity for laser sampling in He and Ne and a decrease for Kr and Xe relative to Ar. Plasma shielding is a possible mechanism to explain the gas effects, as the behavior of laser sampling correlates with the ionization potential of the gas. The significant improvement in AES using He as the sample chamber gas is beneficial to chemical analysis, especially for trace analysis, which requires high sensitivity. | The effects of gas atmosphere on inductively coupled plasma excitation characteristics and picosecond laser ablation sampling are studied for enhancing atomic emission spectroscopy sensitivity. Five noble gases (He, Ne, Ar, Kr, Xe) were used in the laser ablation sampling chamber. The noble gases significantly influence the ICP excitation characteristics and the laser ablation sampling efficiency. There is an enhancement in ICP emission intensity for laser sampling in He and Ne and a decrease for Kr and Xe relative to Ar. Plasma shielding is a possible mechanism to explain the gas effects, as the behavior of laser sampling correlates with the ionization potential of the gas. The significant improvement in AES using He as the sample chamber gas is beneficial to chemical analysis, especially for trace analysis, which requires high sensitivity.en_HK
dc.languageengen_HK
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/acen_HK
dc.relation.ispartofAnalytical Chemistryen_HK
dc.titleInfluence of gas environment on picosecond laser ablation sampling efficiency and ICP conditionsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0003-2700&volume=70&issue=22&spage=4709&epage=4716&date=1998&atitle=Influence+of+gas+environment+on+picosecond+laser+ablation+sampling+efficiency+and+ICP+conditionsen_HK
dc.identifier.emailChan, WT:wtchan@hku.hken_HK
dc.identifier.authorityChan, WT=rp00668en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/ac980336fen_HK
dc.identifier.scopuseid_2-s2.0-0032533538en_HK
dc.identifier.hkuros40102en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0032533538&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume70en_HK
dc.identifier.issue22en_HK
dc.identifier.spage4709en_HK
dc.identifier.epage4716en_HK
dc.identifier.isiWOS:000077003600010-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLeung, APK=7403012538en_HK
dc.identifier.scopusauthoridChan, WT=7403918827en_HK
dc.identifier.scopusauthoridMao, XL=7402841260en_HK
dc.identifier.scopusauthoridRusso, RE=7201443495en_HK

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