Z. Kopajtic et al., DETERMINATION OF TRACE-ELEMENT IMPURITIES IN NUCLEAR-MATERIALS BY INDUCTIVELY-COUPLED PLASMA-MASS SPECTROMETRY IN A GLOVE-BOX, Journal of analytical atomic spectrometry, 10(11), 1995, pp. 947-953
The determination of trace level impurities in nuclear materials was p
erformed by inductively coupled plasma mass spectrometry (ICP-MS). Ebr
this purpose extensive modifications of a commercial ICP-MS instrumen
t were carried out and the operating conditions optimized, The effect
of Zr, Th, U and Pu at concentrations of up to 1000 mu g g(-1) on the
signal of various isotopes was studied. A strong signal suppression ef
fect at concentrations higher than 100 mu g g(-1) was found for U and
Po. The effect of Zr and Th was found to be lower, Special effort was
made to improve the detection limit for B; the detection limit for B i
n PuO2 could be lowered to less than 1 mu g g(-1).