Open Access

Table 1

Instrument settings and furnace programs for analysis of Cu, Pb, As, Co, Ni, and Fe by GFAAS.

Conditions Cu Pb As Co Ni Fe
Wavelength (nm) 324.8 283.3 193.7 240.7 232 248.3
Lamp current (mA) 15 20 10 20 25 30
Air flow (ml min−1) 250 250 250 250 250 250
Injection volume (µL) 10 10 10 10 10 10
  Heating program temperature °C [ramp time (s), hold time (s)]
Drying 1 110 (2, 20) 100 (20, 10) 95 (20, 10) 110 (20, 0) 110 (20, 0) 110 (1, 30)
Drying 2 130 (5, 20) 190 (20, 10) 110 (20, 10) 250 (10, 0) 250 (10, 0) 130 (15, 30)
Pyrolysis 1 900 (10, 0) 900 (30, 20) 750 (20, 10) 1000 (10, 0) 1000 (10, 0) 1200(10, 0)
Pyrolysis 2 1200 (0, 13) 1200 (0, 15) 850 (0, 15) 1300 (0, 13) 1300 (0, 13) 1400 (0, 15)
Atomization 2000 (0, 2) 1600 (0, 5) 2450 (0, 5) 2300 (0, 2) 2150 (0, 2) 2400 (0, 5)
Cleaning 2200 (0, 2) 2400 (1, 3) 2500 (0, 2) 2400 (0, 2) 2250 (0, 2) 2500 (5, 2)

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