Determination of submicrogram amounts of beryllium in air filter samples by nonflame atomic absorption spectrometry

Flameless atomic absorption determination of beryllium in the presence of various anions and cations

“…It should be noted that the effect of acids tends to vary with respect to the type of graphite furnace used and with the internal gas flow (normal, interrupt, or constantly blocked). Results obtained with the Perkin-Elmer HGA-70, 6 the Perkin-Elmer HGA-2000,JJ the Perkin-Elmer HGA-2100, and the Varian Techtron Model 63, 12 ali differ. Simple changes in the furnace parameters do not account for these differences.…”

“…Hurlbut analyzed urine for beryllium by flameless AAS. 11 Hurlbut and Bokowski investigated the recovery of nanogram amounts of beryllium from air filter samples by flameless AAS 12 as did Bettger, Ficklin, and Rees. 13 Owens and Gladney used flameless AAS m analyzing coal, orchard leaves, fly ash, and bovine liver for beryllium .…”