Influences des entraîneurs Ga(2)O(3) et NaF sur la volatilisation et l'excitation du vanadium dans la methode de Scribner-Mullin

Abstract

A study has been made of the effect of NaF and Ga(2)O(3) as entrainers, on the spectral line intensities of vanadium, and on the sensitivity and detection limits by the Scribner-Mullin method. The two entrainers have different effects on the volatilization of vanadium. By radiotracer methods with (48)V, the degree of volatilization was found to be 37% with NaF and 0.9% with Ga(2)O(3). Use of NaF greatly increases the sensitivity, lowering the detection limit by a factor of about 50, without affecting the precision. The physicochemical conditions in the plasma do not seem to influence the line intensities with either entrainer.