Performance and results 
19 
For unknown reasons, the IAEA’s data show elevated RSDs for C18 and for 
C28-C38. Closer Investigation of the IAEA’s raw data (not shown here) might 
Indicate some drift problem. Further aspects need to be Investigated In order 
to clearly pinpoint the underlying problem. 
Laboratory Performance RSD (n=4) 
(based on raw counts of n-Alkanes (85 m/z)) 
C18 
BSH PeakHelght 
Fig. 8: RSD for individual n-alkanes for each participant’s data set.