Open AccessExcitation and analytical characteristics of an ethanol loaded U-shaped arc
Author(s) -
Marija Raskovic,
Ivanka Holclajtner-Antunović,
M. Tripković,
Dragan Marković
Publication year - 2003
Publication title -
journal of the serbian chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.227
H-Index - 45
eISSN - 1820-7421
pISSN - 0352-5139
DOI - 10.2298/jsc0302109r
Subject(s) - plasma , argon , analyte , ethanol , excitation , chemistry , arc (geometry) , analytical chemistry (journal) , excitation temperature , atomic physics , spectral line , electron density , electric arc , line (geometry) , emission spectrum , electrode , chromatography , physics , geometry , mathematics , organic chemistry , quantum mechanics , astronomy , electrical engineering , engineering
The effect of the ethanol load on the discharge and analytical parameters of an argon stabilized U-shaped DC arc has been recorded. Measurements of the radial distribution of the apparent temperatures and the electron number density of the DC plasma showed that ethanol addition causes a decrease in both plasma parameters. The changes in the plasma characteristics, as well as in transport and atomisation processes of the analyte cause a general change in the spectral line intensities, which depends on the physical characteristics of the analyte and the quantity of ethanol loaded into the plasma. Improved detection limits were obtained for V and Mn when a 10%(v/v) water?ethanol solution was nebulized into the plasma.