The Perkin–Elmer 5100 Zeeman atomic absorption spectrometer and HGA-5100 graphite furnace (Perkin–Elmer,
Germany) with pyrolytically coated graphite tubes of the standard type non-platform and AS-90 autosampler (Perkin–Elmer,
Germany) were used in Cu, Cr, and Mn determinations. Measurements were performed at 196.0 nm for Se, 324.8 nm for
Cu, 357.9 nm for Cr, and 279.5 nm for Mn, using hollow cathode lamps (Perkin–Elmer).
The Perkin–Elmer 5100 Zeeman atomic absorption spectrometer and HGA-5100 graphite furnace (Perkin–Elmer,Germany) with pyrolytically coated graphite tubes of the standard type non-platform and AS-90 autosampler (Perkin–Elmer,Germany) were used in Cu, Cr, and Mn determinations. Measurements were performed at 196.0 nm for Se, 324.8 nm forCu, 357.9 nm for Cr, and 279.5 nm for Mn, using hollow cathode lamps (Perkin–Elmer).
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