Internal Standard concentration changed but no values changed?

Hello all,

We recently found that our internal standard value in Masshunter was actually supposed to be 40ppm, not 50ppm, and adjusted it in the ISTD Setup Tab. Applying the new method to previous runs gives the same values for all QC and all samples. Is there something I'm missing or do the values really solely depend on response ratios? Is it because all of the internal standards changed?


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