Приказ основних података о документу

dc.creatorStoiljković, Milovan
dc.creatorPašti, Igor A.
dc.creatorMomčilović, Miloš
dc.creatorSavović, Jelena
dc.creatorPavlović, Mirjana S.
dc.date.accessioned2018-03-01T21:37:18Z
dc.date.available2018-03-01T21:37:18Z
dc.date.issued2010
dc.identifier.issn0584-8547 (print)
dc.identifier.urihttp://vinar.vin.bg.ac.rs/123456789/4236
dc.description.abstractEnhancement of emission line intensities by induced oscillations of direct current (DC) arc plasma with continuous aerosol sample supply was investigated using multivariate statistics. Principal component analysis (PCA) was employed to evaluate enhancements of 34 atomic spectral lines belonging to 33 elements and 35 ionic spectral lines belonging to 23 elements. Correlation and classification of the elements were done not only by a single property such as the first ionization energy, but also by considering other relevant parameters. Special attention was paid to the influence of the oxide bond strength in an attempt to clarify/predict the enhancement effect. Energies of vaporization, atomization, and excitation were also considered in the analysis. In the case of atomic lines, the best correlation between the enhancements and first ionization energies was obtained as a negative correlation, with weak consistency in grouping of elements in score plots. Conversely, in the case of ionic lines, the best correlation of the enhancements with the sum of the first ionization energies and oxide bond energies was obtained as a positive correlation, with four distinctive groups of elements. The role of the gas-phase atom-oxide bond energy in the entire enhancement effect is underlined. (C) 2010 Elsevier B.V. All rights reserved.en
dc.relationMinistry of Science of the Republic of Serbia [142065, 142047]
dc.rightsclosedAccessen
dc.sourceSpectrochimica Acta. Part B: Atomic Spectroscopyen
dc.subjectDC arc plasmaen
dc.subjectLine intensity enhancementen
dc.subjectMagnetic field effecten
dc.subjectFirst ionization energyen
dc.subjectOxide bond energyen
dc.subjectPrincipal component analysisen
dc.titlePrincipal component analysis of the main factors of line intensity enhancements observed in oscillating direct current plasmaen
dc.typearticleen
dcterms.abstractПавловиц, Мирјана С.; Стоиљковић Милован; Пасти, Игор A.; Момчиловић Милош; Савовић Јелена;
dc.citation.volume65
dc.citation.issue11
dc.citation.spage927
dc.citation.epage934
dc.identifier.wos000287951000006
dc.identifier.doi10.1016/j.sab.2010.09.002
dc.citation.rankM21
dc.identifier.scopus2-s2.0-78149285727


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