Estimation of Ion Competition via Correlated Responsivity Offset in Linear Ion Trap Mass Spectrometry Analysis: Theory and Practical Use in the Analysis of Cyanobacterial Hepatotoxin Microcystin-LR in Extracts of Food Additives
Figure 7
Calibration curves of the MCYST-LR molecular ion with cleavage of the Adda moiety in MeOH and the estimated calibration curves in food additives matrices (hydrolyzate and Stigeoclonium sp. extract). From (a) to (b) the estimated calibration curve in salmon hydrolyzate and the estimated calibration curve in Stigeoclonium sp. extract. The blue stars represent the measured calibration curve of the MCYST-LR molecular ion with cleavage of the Adda moiety in MeOH. The red circles represent the measured calibration curve of the MCYST-LR molecular ion with cleavage of the Adda moiety in a given food additive matrix. The green lines represent the estimated calibration curve of the MCYST-LR molecular ion with cleavage of the Adda moiety in a given food additive matrix. Units for graph axes are as follows: μg/mL for the -axis and counts for the -axis.
