TY  - JOUR
AU  - Stoiljković, Milovan
AU  - Pašti, Igor A.
AU  - Momčilović, Miloš
AU  - Savović, Jelena
AU  - Pavlović, Mirjana S.
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4236
AB  - Enhancement 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.
T2  - Spectrochimica Acta. Part B: Atomic Spectroscopy
T1  - Principal component analysis of the main factors of line intensity enhancements observed in oscillating direct current plasma
VL  - 65
IS  - 11
SP  - 927
EP  - 934
DO  - 10.1016/j.sab.2010.09.002
ER  - 

@article{
author = "Stoiljković, Milovan and Pašti, Igor A. and Momčilović, Miloš and Savović, Jelena and Pavlović, Mirjana S.",
year = "2010",
abstract = "Enhancement 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.",
journal = "Spectrochimica Acta. Part B: Atomic Spectroscopy",
title = "Principal component analysis of the main factors of line intensity enhancements observed in oscillating direct current plasma",
volume = "65",
number = "11",
pages = "927-934",
doi = "10.1016/j.sab.2010.09.002"
}

Stoiljković, M., Pašti, I. A., Momčilović, M., Savović, J.,& Pavlović, M. S.. (2010). Principal component analysis of the main factors of line intensity enhancements observed in oscillating direct current plasma. in Spectrochimica Acta. Part B: Atomic Spectroscopy, 65(11), 927-934.
https://doi.org/10.1016/j.sab.2010.09.002

Stoiljković M, Pašti IA, Momčilović M, Savović J, Pavlović MS. Principal component analysis of the main factors of line intensity enhancements observed in oscillating direct current plasma. in Spectrochimica Acta. Part B: Atomic Spectroscopy. 2010;65(11):927-934.
doi:10.1016/j.sab.2010.09.002 .

Stoiljković, Milovan, Pašti, Igor A., Momčilović, Miloš, Savović, Jelena, Pavlović, Mirjana S., "Principal component analysis of the main factors of line intensity enhancements observed in oscillating direct current plasma" in Spectrochimica Acta. Part B: Atomic Spectroscopy, 65, no. 11 (2010):927-934,
https://doi.org/10.1016/j.sab.2010.09.002 . .