Emission spectrometric analysis of fresh waters with U-shaped dc arc with aerosol supply
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The application of a U-shaped d.c. are with aerosol supply for analysis of fresh waters has been described. Limits of detection obtained with d.c. plasma compare well with those reported for ICP. A number of spectral lines and molecular bands were examined and the most suitable are selected to ensure the best limits of detection or wide dynamic ranges. Limits of detection in ng ml(-1), given in the parenthesis, following the element symbol, are: Al(0.9), B(0.6), Ba(0.2), Be(0.15), Ca(0.05), Cd(3.5), Co(1.1), Cr(0.2), Fe(2.4), Ga(0.5), Hg(9.0), K(0.3), Li(0.008), Mg(0.4), Mn(0.3), Mo(0.7), Na(0.04), Ni(2.0), P(45), Pb(12), Si(9.0), Sr(0.04), Zn(1.3).
Кључне речи:dc arc / emission spectroscopy / water analysis
Извор:Spectroscopy Letters, 1996, 29, 2, 205-215
ISSN: 0038-7010 (print)