Consideration of inductively coupled plasma spectroscopy for trace element analysis in the bio-medical and environmental fields

1983 ◽  
Vol 38 (1-2) ◽  
pp. 199-206 ◽  
Author(s):  
Peter Schramel
2019 ◽  
Vol 322 (2) ◽  
pp. 941-948
Author(s):  
Anna Vesterlund ◽  
Henrik Ramebäck

Abstract In this work, problems arising from performing trace element analysis using inductively coupled plasma—mass spectrometry with low measurement uncertainties are addressed. It is shown that some reference materials certified for massic concentration of lanthanides may have either deviating concentrations or underestimated measurement uncertainties. It is also shown that the choice of methods for sample preparation and linear regression to perform external calibration is affecting the outcome of the measurement results and their uncertainties. The results show that, from the selection of methods investigated in this work, the lowest measurement uncertainties can be achieved by using weighted linear regression to evaluate the calibration function and gravimetric dilutions of samples.


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