||Determining Beryllium in Drinking Water by Graphite Furnace Atomic Absorption Spectroscopy.
Lytle, D. A. ;
Schock, M. R. ;
Dues, N. R. ;
Doerger, J. U. ;
||Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Test methods ;
Chemical analysis ;
Atomic spectroscopy ;
Ascorbic acid ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
A direct graphite furnace atomic absorption spectroscopy method for the analysis of beryllium in drinking water has been derived from a method for determining beryllium in urine. Ammonium phosphomolybdate and ascorbic acid were employed as matrix modifiers. The matrix modifiers successfully eliminated common chemical interferences in drinking water samples analyzed for beryllium content, as well as interferences encountered during jar testing of beryllium removal by alum coagulation. The method proved to be a simple, accurate, and precise alternative to the method of standard additions. Method detection limit was 0.09 microgram/l, with a linear calibration range of 0 to 6 microgram/l.