170135_inorganicventures_flipping

Pure Samples

• Only one major source of interferences • Depending on concentration level… • May cause signal depression for trace elements • Consider using internal standard • Consider using standard additions method

• Calibration curves that don’t contain the major element at the same concentration will yield a low bias in the trace element results unless corrected.

High Matrix Solutions

• Contains multiple major sources of interferences • Depending on concentration level… • The same concerns for pure samples apply • Interference identification is much more important • Close examination of spectra required • Confirm peak centering and background positions • Background shifting will need to be evaluated • Confirm results on multiple emission lines