Instrumental neutron activation analysis (INAA) technique was used to investigate 24 trace impurities in high purity alumina. Na was found to be a major element with concentration 159 g/g while Fe, Cr, Sr, K and Ba were in lower amounts having concentrations from 9 to 27 g/g. The low amounts of impurities suggest that deleterious effects upon the properties of high purity Al2O3 should not occur. Remaining impurity elements were in trace amounts; i.e. concentrations from 0.003 to 1.50 g/g.
Yusuf Islam, Shahida Waheed, Naila Siddique, M. Mansha Chaudhry
You can use below filter to find your desired issue