Abstrakt
RepublicAbstractThe performance of two radiation sources - an electrodeless dischar-ge lamp and a boosted-discharge hollow cathode lamp - in the atomic fluorescence spectrometry was studied for bismuth as a model analyte at 222.8 nm line. An in-house assembled nondispersive atomic fluorescence spectrometer was modified to operate with both radiation sources.
Hydride generation was employed for sample introduction and a miniature diffusion flame for atomization. Limits -1of detection of 1.8 and 11 ng L for the electrodeless discharge lamp and the boost-discharge hollow cathode lamp, respectively, were achieved at optimal operational parameters.
Around 5 times higher sensitivity obtained with the electrodeless discharge lamp suggests significantly higher emission intensity of the electrodeless discharge lamp at 222.8 nm line.