An emission spectrographic technique was developed to estimate 16 trace elements in some samples of Egyptian granite. The detection limits were: ffl ppm for Pb, Ba, Mo, Cth Cr, Yb and Ni, 0"3 ppm for Sn, Ga and Be, 1 ppm for Co, Sc and V, 3 ppm for Bi and Y and 10 ppm for La. The relative deviation oftbe two-thirds limits ranges between-I-1.5 and + 24.7.
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