Table 2. Operating parameters for flame atomic absorption spectrophotometer for determination of heavy metals in infant formula milk brands

Metal Wavelength (nm) Flow rate (l/min) Band pass (nm)
Lead 217 0.8-1.1 0.45
Cadmium 227.8 0.9-1.4 0.48
Iron 248 0.9-1.1 0.2
Zinc 214 1-1.3 0.2
Nikel 231.8 0.9-1.1 0.2