Principal component analysis of the main factors of line intensity enhancements observed in oscillating direct current plasma

Atomic Spectroscopy

“…This testifies that the approach is as powerful and even easier than many advance direct solids method developed today . For the oscillating dc arc with a continuous aerosol sample supply, the enhancements of emission line intensities by induced oscillations were studied and the role of the gas-phase atom-oxide bond energy in the entire enhancement effect underlined . Further direct solids sampling in the analysis of animal organs by two-jet plasma atomic emission spectrometry was described …”

“…66 For the oscillating dc arc with a continuous aerosol sample supply, the enhancements of emission line intensities by induced oscillations were studied and the role of the gas-phase atom-oxide bond energy in the entire enhancement effect underlined. 67 Further direct solids sampling in the analysis of animal organs by two-jet plasma atomic emission spectrometry was described. 68 As a new source for atomic emission spectrometry, the thetapinch imploding thin film plasma source has been described.…”

Atomic spectrometry update. Advances in atomic spectrometry and related techniques

“…PCA has been used to study intensity enhancements of 34 atomic spectral lines belonging to 33 elements and 35 ionic spectral lines belonging to 23 elements in an oscillating DCP. 156 Ionisation energies, oxide bond strengths, energies of vaporisation, atomisation, and excitation were also considered in the analysis, resulting in negative correlation between enhancements and first ionisation energies for atomic lines; and positive correlation with the sum of the first ionisation energies and oxide bond energies for ionic lines, with four distinctive groups of elements.…”