Evgeniy D. Prudnikov and Ramon M. Barnes
The theoretical calculation of the standard deviation in inductively coupled plasma mass spectrometry (ICP-MS) was investigated. The theoretical dependence of the standard deviation on instrument parameters and element concentration was examined. The connection between the standard deviation and the detection limit was demonstrated. The theoretical results were compared with experimental data and showed good agreement. The theory proposed may be used for the improvement of the detection limit in ICP-MS.