Element Primary line (nm) Secondary line (nm) As 193.696 188.979 Ba 230.425 233.527 Cd 228.802 214.440 / 226.502 Cr 267.716 206.158 Hg 194.168 184.887 Pb 220.353 283.306 Sb 206.836 217.582 Se 196.026 203.985 Al 396.152 308.215 B 249.678 - Co 228.615 238.892 Cu 327.395 324.754 Mn 257.61 - Ni 231.604 221.648 Sn 189.927 242.95 Sr 421.552 - Zn 334.502 213.857