%0 Journal Article
%A Xianglei Mao
%A George C.-Y Chan
%A Inhee Choi
%A Vassilia Zorba
%A Richard E Russo
%B Journal of Radioanalytical and Nuclear Chemistry
%D 2017
%G eng
%N 1
%P 121 - 131
%R 10.1007/s10967-017-5197-y
%T Combination of atomic lines and molecular bands for uranium optical isotopic analysis in laser induced plasma spectrometry
%V 312
%8 02/2017
%! J Radioanal Nucl Chem
%X <p><span>Through computer simulation on experimentally acquired optical spectra, uranium isotopic analysis by laser ablation molecular isotopic spectrometry and laser induced breakdown spectroscopy were studied. The use of only one spectral feature, either the strong UO band at 593.55&nbsp;nm or the nearby U I 593.382&nbsp;nm line, are similar in precisions (~&nbsp;1.5% in absolute&nbsp;</span><span>235</span><span>U abundances). Precision improves to 0.72% with the use of a group of U atomic lines from 591.6 to 596.5&nbsp;nm. The use of both molecular bands and atomic lines further advances the precision to 0.42% and compares well with the U&nbsp;II 424.437&nbsp;nm single-line benchmark (0.48% precision).</span></p>