Spectrographic Determination of Beryllium in the Atmosphere; DOSAGE SPECTROGRAPHIQUE DU BERYLLIUM DANS L'ATMOSPHERE

Since the apparatus for continuous determination of beryllium is not yet perfect, a discontinuous method was developed. The air to be analyzed is filtered, and the dust laden filter is dissolved in a mixture of stulfuric and nitric acid. The pH and the conductivity of the solution obtained were adjusted to standard values, and it was then analyzed spectrographically by the rotating sector method. Up to 0.01 x l0/sup -6/ of Be per cm/sup 3/ of solution can be detected. The precision is of the order of 10 per cent. (auth)