For AAS determination of bismuth you can use
Ready-to-use Calibration Sets:
CPA code No K006R -
with concentrations: 5; 10; 20 mg/l and
CPA code No K006S -
with concentrations: 10; 20; 50 mg/l .
q
Recomended Instrument
Parameters (Varian instruments)
Lamp Current 10
mA
Flame , Stoichiometry Air-C2H2 , Oxidizing
Wavelenght 223.1
nm
Slit 0.2
nm