An X-ray spectrographic method for determining barium

Abstract

An X-ray spectrographic method is described in which a Philips 50-kV universal X-ray spectrograph with a chromium tube is used for the quantitative trace analysis of barium in aqueous solutions. The method involves the use of the barium Lα₁ line, and is suitable for concentrations of up to at least 0·5 per cent. w/w of barium. A limit of detection of 0·002 per cent. w/w of barium is achieved. The extension of the method to the neighbouring elements in the periodic table is suggested.