The difficulties of sample preparation and checking of natural raw materials have been presented.As examples the problems connected with the analysis of kaolin and sand have been described. The sampling of specimens, the proper method of sample dissolution depending on the mineralogical form of impurities, sensitivity and precision of determinations have been discussed. In the case of determinations in many laboratories and method of samples preparation precision and sensitivity of the method of determination have to be the same.
Origin
Unknown
Journal Title
Szklo Ceram 24 1 1973 9-12
Sector
Primary Papers
Class
PP 1288