Abstract
Atomic absorption spectrometry has come into wide use in many industrial fields since 10 years ago because of the high sensitivity, the short time required, and relatively low-priced installations. In petroleum refineries, it is also used for the routine analysis. This spectrometry, however, has not been authorized yet as the analytical method for petroleum products, such as ASTM method.
In view of such a situation, the author has referred to some recent literatures on a few typical products.
Consequently it has become clean that the conventional method using flame for atomization, requires scrupulous cares in the measurement concentrating on reproducibility, though it is regarded as being almost perfect. A new method having no need of flame for atomization will beapplied to the analyses of food or to the analyses for environmental problems, as the sensitivity is 100-1000 times over that of conventional one.
