Abstract
Laser autoionization mass spectroscopy has been demonstrated to have potential for sensitive and selective analysis of atomic species. Ytterbium samples smaller than 10 ng have been detected using an ArF ∗ excimer laser in conjunction with a time-of-flight mass spectrometer. Elemental selectivity of greater than 5 : 1 with respect to lutetium has been observed, confirming the utility of autoionizing versus bound-free transitions. source geometry and laser duty cycle currently appear to limit the ultimate sensitivity of this technique.
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