... , Mg, Si, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn. Total impurity content: 100 ppm max. 5N Gallium: 99.999 ... , Mg, Si, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn. Total impurity content: 10 ppm max. 6N Gallium: 99.9999 ... , Mg, Si, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn. Total impurity content: 1 ppm max. Analysis By using GDMS ...