“…These and other possibilities for spectral interferences were tabulated extensively by Vaughn, Tan,and Horlick (147,169), and computer programs to aid in identification of these interferences are available (139,170). Substantial HF in the sample, often necessary for dissolution of silicate samples, can lead to rapid degradation of the sampling orifice, presumably from attack by free F atoms in the plasma (171). Thus, acids other Background spectra for 5% nitric acid, mlz = 1 4 3 .…”