Abstract
In a nitrous oxide-acetylene flame, the atomic absorption signals for Ti, Zr, and U were enhanced 100, 200, and 400%, respectively, when 800 ..mu..g of Al was added per milliliter of solution. Parameters affecting the extent of the Al enhancement of Ti were investigated and optimum analysis conditions were determined. The dependence of the Ti enhancement on the Al/Ti molar ratio indicated a possible stoichiometric reaction. Emission due to TiO was also enhanced to a similar extent by Al, indicating that the mechanism of enhancement was not a simple competition for oxygen in the flame. By use of a uniform droplet generator, explosive fragmentation of solute particles was observed for Ti, Zr, and U when Al was added but not for Al or the other elements alone. By greatly increasing the solute particle surface area, making vaporization more rapid, this explosive fragmentation could account for the Al enhancement of these elements. 8 figures.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
