Table 2.

The detail of 22 variables selected by genetic algorithm (GA) based on National Institute of Standards and Technology (NIST) database.

Elements	Emission Line (nm)	Selected Variables (nm)
Cd I	228.80	228.64, 228.74, 228.72, 228.66, 228.68, 228.76, 228.80, 228.78
Cd II	226.50	226.44, 226.42, 226.56, 226.50, 226.46, 226.54
Cd II	214.44	214.44, 214.36, 214.48, 214.58
background	/	222.23, 222.25, 222.27, 230.94