Figure 5.
Experimental improvement factors for three peptides in simple background are averaged over four replicates. A) When using CHCA, the LOD is improved in all of the 9 experimental pairs yielding improvement factors greater than 1. B) The LOD is improved in 8 of the 9 experimental pairs when DHB is used as the MALDI matrix. The dotted line shows the threshold of LOD improvement. The error-bars show the standard error of the mean.
