TM96-04 Inductively Coupled Plasma-Atomic Emission Spectrometry to replace Flame Atomic Absorption Spectrometry for the determination of dissolved trace metals and major ions in filtered acidified water samples and the effects of this change

Effective April 1, 1996, the National Water Quality Laboratory (NWQL) will replace the direct Flame Atomic Absorption (FAA) methods for the determination of dissolved trace metals and major ions in filtered acidified water samples. The FAA methods will be replaced with the Inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-AES) method described in Techniques of Water-Resources Investigations of the U.S. Geological Survey (Fishman and Friedman,1989, p. 517-522) and modified in Open-File Report 93-125 (Fishman, 1993, p. 101-112). The parameters affected are listed in Table 1.