Question isotopic cluster

[jabnremtp]

What does it mean when an error is received stating the following

The length of the measured isotopic cluster (4) is different than the required number of measurements: 20 (i.e. N + 1, where N is the number of atoms that could be traced)

[bdelepine]

Hi @jabnremtp!

The error states that the provided data is not sufficient to perform the correction.

This seems to be expected in your case: indeed, it seems that 4 measurements were provided (which, I guess, are the area of peaks M0, M1, M2, and M3) whereas IsoCor expects 20 peak measurements for this chemical given its number of tracer element (M0, M1, M2, ..., M19). If you didn't see any peak for M4, M5, ..., M19, you should assume that the measure is 0 and put it in IsoCor inputs. I invite you to browse through the FAQ for more information on that subject.

If you believe IsoCor should not be asking you for more data (eg. if your chemical does have less than 19 tracer elements) I would be happy to review the log file.

Does that answers your question? 😃