ANALYSIS OF SIMULATED WASTE VITRIFICATION GLASS SPECIMENS BY ICP/AES

For determination of the element contents in simulated waste vitrification glassspecimens being dissolved by LiBO_2 fusion method or sealed acid dissolution me-thod the following problems have been solved: 1. The nebulizer made in our institute specially designed for the analysis ofhigh solid content solution has been used in our work to eliminate the nebulizerblokage caused by large content of H_3BO_3 or LiBO_2 in sample solution. 2. The spectral interference has been checked. We noticed that a calcium linecoincides with the main resonance line of sulfur S 180.73 nm, also uranium andtitanium line wings interfere Li 323.26 nm and Na 330.23 nm. By changing ofoperating parameters of plasma discharge, i. e. increasing carrier gas flow rate anddecreasing RF power the line intensities of Li 323.26 nm and Na 330.23 nm canbe enchanced, at the same time the line intensities of interfering elements (U, Ti)are weakend. 19 elements (Si B, Na, Li, Ca, Mg, Al, Ti, Zr, Mn, Sr, Cr Ni, Fe,La, Nd, Ce, S, U) in glass solidifier have been determined. The RSD is rangingfrom 1%--5%.